115631560 has 64 divisors (see below), whose sum is σ = 286545600. Its totient is φ = 41644800.

The previous prime is 115631491. The next prime is 115631627. The reversal of 115631560 is 65136511.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46755 + ... + 49165.

It is an arithmetic number, because the mean of its divisors is an integer number (4477275).

Almost surely, 2^115631560 is an apocalyptic number.

115631560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 115631560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143272800).

115631560 is an abundant number, since it is smaller than the sum of its proper divisors (170914040).

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

115631560 is a wasteful number, since it uses less digits than its factorization.

115631560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2542 (or 2538 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 28.

The square root of 115631560 is about 10753.2116132809. The cubic root of 115631560 is about 487.1830032097.

The spelling of 115631560 in words is "one hundred fifteen million, six hundred thirty-one thousand, five hundred sixty".