115687312 has 40 divisors (see below), whose sum is σ = 255593016. Its totient is φ = 50251776.

The previous prime is 115687307. The next prime is 115687331. The reversal of 115687312 is 213786511.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 36192256 + 79495056 = 6016^2 + 8916^2 .

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (34).

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, 12823 + ... + 19894.

Almost surely, 2^115687312 is an apocalyptic number.

It is an amenable number.

115687312 is an abundant number, since it is smaller than the sum of its proper divisors (139905704).

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

115687312 is a wasteful number, since it uses less digits than its factorization.

115687312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32755 (or 32749 counting only the distinct ones).

The product of its digits is 10080, while the sum is 34.

The square root of 115687312 is about 10755.8036426852. The cubic root of 115687312 is about 487.2612893992.

The spelling of 115687312 in words is "one hundred fifteen million, six hundred eighty-seven thousand, three hundred twelve".