115515156 has 48 divisors (see below), whose sum is σ = 275647680. Its totient is φ = 37639680.

The previous prime is 115515137. The next prime is 115515173. The reversal of 115515156 is 651515511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 170290 + ... + 170966.

It is an arithmetic number, because the mean of its divisors is an integer number (5742660).

Almost surely, 2^115515156 is an apocalyptic number.

It is an amenable number.

115515156 is an abundant number, since it is smaller than the sum of its proper divisors (160132524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

115515156 is a wasteful number, since it uses less digits than its factorization.

115515156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 984 (or 982 counting only the distinct ones).

The product of its digits is 3750, while the sum is 30.

The square root of 115515156 is about 10747.7977279069. The cubic root of 115515156 is about 487.0194691636.

The spelling of 115515156 in words is "one hundred fifteen million, five hundred fifteen thousand, one hundred fifty-six".