115918 has 12 divisors (see below), whose sum is σ = 191520. Its totient is φ = 52580.

The previous prime is 115903. The next prime is 115931. The reversal of 115918 is 819511.

It is a junction number, because it is equal to n+sod(n) for n = 115892 and 115901.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3 + ... + 481.

It is an arithmetic number, because the mean of its divisors is an integer number (15960).

2¹¹⁵⁹¹⁸ is an apocalyptic number.

115918 is a deficient number, since it is larger than the sum of its proper divisors (75602).

115918 is a wasteful number, since it uses less digits than its factorization.

115918 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 492 counting only the distinct ones).

The product of its digits is 360, while the sum is 25.

The square root of 115918 is about 340.4673258919. The cubic root of 115918 is about 48.7584951227.

It can be divided in two parts, 115 and 918, that multiplied together give a triangular number (105570 = T₄₅₉).

The spelling of 115918 in words is "one hundred fifteen thousand, nine hundred eighteen".