115 (number)
115 is the natural number following 114 and preceding 116.In mathematics
115 has a square sum of divisors:
There are 115 different rooted trees with exactly eight nodes, 115 inequivalent ways of placing six rooks on a 6 × 6 chess board in such a way that no two of the rooks attack each other, and 115 solutions to the stamp folding problem for a strip of seven stamps.
115 is also a heptagonal pyramidal number. The 115th Woodall number,
is a prime number.115 is also the fire service emergency number in Mauritius and Italy,
and the ambulance emergency number in Vietnam.
