115810992 has 80 divisors (see below), whose sum is σ = 362655360. Its totient is φ = 35092800.

The previous prime is 115810969. The next prime is 115811051. The reversal of 115810992 is 299018511.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

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

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 7434 + ... + 16937.

It is an arithmetic number, because the mean of its divisors is an integer number (4533192).

Almost surely, 2^115810992 is an apocalyptic number.

115810992 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115810992 is an abundant number, since it is smaller than the sum of its proper divisors (246844368).

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

115810992 is a wasteful number, since it uses less digits than its factorization.

115810992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24399 (or 24387 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 36.

The square root of 115810992 is about 10761.5515609971. The cubic root of 115810992 is about 487.4348694054.

The spelling of 115810992 in words is "one hundred fifteen million, eight hundred ten thousand, nine hundred ninety-two".