117 (one hundred [and] seventeen) is the natural number following 116 and preceding 118.
117 is the smallest possible length of the longest side of a Heronian tetrahedron (one whose sides are all rational numbers).
117 is a pentagonal number.
In base 10, 117 is a Harshad number.
The atomic number of the element Tennessine
One hundred seventeen is also:
A substitute for the number 17, which is considered unlucky in Italy. When Renault exported the R17 to Italy, it was renamed R117.
The number to call Guardia di Finanza for customs/financial/border police in Italy
The fire emergency telephone number in Portugal
1-1-7 was the national emergency telephone number in the Philippines until it was changed to 9-1-1 on August 1, 2016.
The police emergency telephone number in Switzerland
F-117 is the designation of the first operational stealth attack aircraft.
John-117, the codename for the protagonist in the Halo series.
OSS 117, the codename for the fictional secret agent Hubert Bonisseur de La Bath by author Jean Bruce and later for a film series directed mostly by André Hunebelle.
Psalm 117 is the exact middle chapter of the King James version of the Bible.
In The Mystery of Element 117 (1949) by Milton Smith, a window is opened into a new "hyperplane of hyperspace" containing those who have already died on earth.
The Japanese telephone company NTT provides a non-free speaking clock on the nationally universal number 117.
