115216590 has 32 divisors (see below), whose sum is σ = 276807456. Its totient is φ = 30692480.

The previous prime is 115216583. The next prime is 115216603. The reversal of 115216590 is 95612511.

It is a super-2 number, since 2×115216590² = 26549725222456200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

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, 47200 + ... + 49580.

It is an arithmetic number, because the mean of its divisors is an integer number (8650233).

Almost surely, 2^115216590 is an apocalyptic number.

115216590 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

115216590 is an abundant number, since it is smaller than the sum of its proper divisors (161590866).

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

115216590 is a wasteful number, since it uses less digits than its factorization.

115216590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4004.

The product of its (nonzero) digits is 2700, while the sum is 30.

The square root of 115216590 is about 10733.8991051714. The cubic root of 115216590 is about 486.5995158699.

The spelling of 115216590 in words is "one hundred fifteen million, two hundred sixteen thousand, five hundred ninety".