115559992 has 32 divisors (see below), whose sum is σ = 221397120. Its totient is φ = 56532960.

The previous prime is 115559953. The next prime is 115560031. The reversal of 115559992 is 299955511.

It is an interprime number because it is at equal distance from previous prime (115559953) and next prime (115560031).

It is a super-2 number, since 2×115559992² = 26708223502080128, which contains 22 as substring.

It is a Smith number, since the sum of its digits (46) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 88867 + ... + 90157.

It is an arithmetic number, because the mean of its divisors is an integer number (6918660).

Almost surely, 2^115559992 is an apocalyptic number.

It is an amenable number.

115559992 is a deficient number, since it is larger than the sum of its proper divisors (105837128).

115559992 is a wasteful number, since it uses less digits than its factorization.

115559992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1531 (or 1527 counting only the distinct ones).

The product of its digits is 182250, while the sum is 46.

The square root of 115559992 is about 10749.8833482043. The cubic root of 115559992 is about 487.0824715180.

The spelling of 115559992 in words is "one hundred fifteen million, five hundred fifty-nine thousand, nine hundred ninety-two".