115388872 has 32 divisors (see below), whose sum is σ = 219847320. Its totient is φ = 56770560.

The previous prime is 115388869. The next prime is 115388887. The reversal of 115388872 is 278883511.

It can be written as a sum of positive squares in 4 ways, for example, as 79316836 + 36072036 = 8906^2 + 6006^2 .

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 186708 + ... + 187324.

Almost surely, 2^115388872 is an apocalyptic number.

It is an amenable number.

115388872 is a deficient number, since it is larger than the sum of its proper divisors (104458448).

115388872 is a wasteful number, since it uses less digits than its factorization.

115388872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 961 (or 957 counting only the distinct ones).

The product of its digits is 107520, while the sum is 43.

The square root of 115388872 is about 10741.9212434275. The cubic root of 115388872 is about 486.8419305776.

The spelling of 115388872 in words is "one hundred fifteen million, three hundred eighty-eight thousand, eight hundred seventy-two".