115491556 has 24 divisors (see below), whose sum is σ = 214482240. Its totient is φ = 54296352.

The previous prime is 115491529. The next prime is 115491577. The reversal of 115491556 is 655194511.

It is a super-2 number, since 2×115491556² = 26676599014602272, which contains 22 as substring.

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, 5211 + ... + 16066.

It is an arithmetic number, because the mean of its divisors is an integer number (8936760).

Almost surely, 2^115491556 is an apocalyptic number.

It is an amenable number.

115491556 is a deficient number, since it is larger than the sum of its proper divisors (98990684).

115491556 is a wasteful number, since it uses less digits than its factorization.

115491556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21363 (or 21361 counting only the distinct ones).

The product of its digits is 27000, while the sum is 37.

The square root of 115491556 is about 10746.6997724883. The cubic root of 115491556 is about 486.9863005224.

The spelling of 115491556 in words is "one hundred fifteen million, four hundred ninety-one thousand, five hundred fifty-six".