115131612 has 24 divisors (see below), whose sum is σ = 272426112. Its totient is φ = 37836400.

The previous prime is 115131589. The next prime is 115131671. The reversal of 115131612 is 216131511.

It is a happy number.

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, 66714 + ... + 68417.

It is an arithmetic number, because the mean of its divisors is an integer number (11351088).

Almost surely, 2^115131612 is an apocalyptic number.

115131612 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115131612 is an abundant number, since it is smaller than the sum of its proper divisors (157294500).

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

115131612 is a wasteful number, since it uses less digits than its factorization.

115131612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135209 (or 135207 counting only the distinct ones).

The product of its digits is 180, while the sum is 21.

The square root of 115131612 is about 10729.9399811928. The cubic root of 115131612 is about 486.4798559500.

The spelling of 115131612 in words is "one hundred fifteen million, one hundred thirty-one thousand, six hundred twelve".