115863312 has 20 divisors (see below), whose sum is σ = 299313680. Its totient is φ = 38621088.

The previous prime is 115863287. The next prime is 115863329. The reversal of 115863312 is 213368511.

It is a self number, because there is not a number n which added to its sum of digits gives 115863312.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1206862 + ... + 1206957.

It is an arithmetic number, because the mean of its divisors is an integer number (14965684).

Almost surely, 2^115863312 is an apocalyptic number.

115863312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115863312 is an abundant number, since it is smaller than the sum of its proper divisors (183450368).

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

115863312 is a wasteful number, since it uses less digits than its factorization.

115863312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2413830 (or 2413824 counting only the distinct ones).

The product of its digits is 4320, while the sum is 30.

The square root of 115863312 is about 10763.9821627500. The cubic root of 115863312 is about 487.5082612670.

The spelling of 115863312 in words is "one hundred fifteen million, eight hundred sixty-three thousand, three hundred twelve".