115904 has 14 divisors (see below), whose sum is σ = 230124. Its totient is φ = 57920.

The previous prime is 115903. The next prime is 115931. The reversal of 115904 is 409511.

It is not an unprimeable number, because it can be changed into a prime (115901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 842 + ... + 969.

2¹¹⁵⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

115904 is a deficient number, since it is larger than the sum of its proper divisors (114220).

115904 is an equidigital number, since it uses as much as digits as its factorization.

115904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1823 (or 1813 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 20.

The square root of 115904 is about 340.4467652953. The cubic root of 115904 is about 48.7565321074.

It can be divided in two parts, 11590 and 4, that multiplied together give a triangular number (46360 = T₃₀₄).

The spelling of 115904 in words is "one hundred fifteen thousand, nine hundred four".