115156972 has 24 divisors (see below), whose sum is σ = 230884640. Its totient is φ = 49230720.

The previous prime is 115156949. The next prime is 115156973. The reversal of 115156972 is 279651511.

It is a super-2 number, since 2×115156972² = 26522256400417568, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (115156973) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6904 + ... + 16672.

Almost surely, 2^115156972 is an apocalyptic number.

It is an amenable number.

115156972 is an abundant number, since it is smaller than the sum of its proper divisors (115727668).

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

115156972 is a wasteful number, since it uses less digits than its factorization.

115156972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10201 (or 10199 counting only the distinct ones).

The product of its digits is 18900, while the sum is 37.

The square root of 115156972 is about 10731.1216561923. The cubic root of 115156972 is about 486.5155722438.

The spelling of 115156972 in words is "one hundred fifteen million, one hundred fifty-six thousand, nine hundred seventy-two".