115520913 has 12 divisors (see below), whose sum is σ = 167614720. Its totient is φ = 76667256.

The previous prime is 115520887. The next prime is 115520921. The reversal of 115520913 is 319025511.

It is a de Polignac number, because none of the positive numbers 2^k-115520913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115520953) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26773 + ... + 30786.

Almost surely, 2^115520913 is an apocalyptic number.

It is an amenable number.

115520913 is a deficient number, since it is larger than the sum of its proper divisors (52093807).

115520913 is a wasteful number, since it uses less digits than its factorization.

115520913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57788 (or 57785 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 27.

The square root of 115520913 is about 10748.0655468787. The cubic root of 115520913 is about 487.0275596590.

The spelling of 115520913 in words is "one hundred fifteen million, five hundred twenty thousand, nine hundred thirteen".