115393288 has 16 divisors (see below), whose sum is σ = 216499500. Its totient is φ = 57660096.

The previous prime is 115393279. The next prime is 115393301. The reversal of 115393288 is 882393511.

It can be written as a sum of positive squares in 2 ways, for example, as 112826884 + 2566404 = 10622^2 + 1602^2 .

It is a super-2 number, since 2×115393288² = 26631221830901888, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115393288.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12678 + ... + 19786.

Almost surely, 2^115393288 is an apocalyptic number.

It is an amenable number.

115393288 is a deficient number, since it is larger than the sum of its proper divisors (101106212).

115393288 is a wasteful number, since it uses less digits than its factorization.

115393288 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9144 (or 9140 counting only the distinct ones).

The product of its digits is 51840, while the sum is 40.

The square root of 115393288 is about 10742.1267912830. The cubic root of 115393288 is about 486.8481410741.

The spelling of 115393288 in words is "one hundred fifteen million, three hundred ninety-three thousand, two hundred eighty-eight".