115631964 has 54 divisors (see below), whose sum is σ = 340018224. Its totient is φ = 33037200.

The previous prime is 115631951. The next prime is 115631983. The reversal of 115631964 is 469136511.

115631964 is a `hidden beast` number, since 1 + 1 + 563 + 1 + 96 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 31012 + ... + 34539.

Almost surely, 2^115631964 is an apocalyptic number.

115631964 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

115631964 is an abundant number, since it is smaller than the sum of its proper divisors (224386260).

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

115631964 is a wasteful number, since it uses less digits than its factorization.

115631964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65575 (or 65563 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 115631964 is about 10753.2303983501. The cubic root of 115631964 is about 487.1835705914.

The spelling of 115631964 in words is "one hundred fifteen million, six hundred thirty-one thousand, nine hundred sixty-four".