115807512 has 32 divisors (see below), whose sum is σ = 292777200. Its totient is φ = 38168064.

The previous prime is 115807511. The next prime is 115807513. The reversal of 115807512 is 215708511.

It is an interprime number because it is at equal distance from previous prime (115807511) and next prime (115807513).

It is a super-2 number, since 2×115807512² = 26822759671260288, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 115807512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115807511) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 24973 + ... + 29244.

Almost surely, 2^115807512 is an apocalyptic number.

115807512 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115807512 is an abundant number, since it is smaller than the sum of its proper divisors (176969688).

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

115807512 is a wasteful number, since it uses less digits than its factorization.

115807512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54315 (or 54311 counting only the distinct ones).

The product of its (nonzero) digits is 2800, while the sum is 30.

The square root of 115807512 is about 10761.3898730601. The cubic root of 115807512 is about 487.4299870526.

Subtracting 115807512 from its reverse (215708511), we obtain a palindrome (99900999).

The spelling of 115807512 in words is "one hundred fifteen million, eight hundred seven thousand, five hundred twelve".