115805172 has 48 divisors (see below), whose sum is σ = 309859200. Its totient is φ = 32975232.

The previous prime is 115805167. The next prime is 115805201. The reversal of 115805172 is 271508511.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24454 + ... + 28802.

It is an arithmetic number, because the mean of its divisors is an integer number (6455400).

Almost surely, 2^115805172 is an apocalyptic number.

115805172 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115805172 is an abundant number, since it is smaller than the sum of its proper divisors (194054028).

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

115805172 is a wasteful number, since it uses less digits than its factorization.

115805172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4680 (or 4678 counting only the distinct ones).

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

The square root of 115805172 is about 10761.2811504950. The cubic root of 115805172 is about 487.4267040363.

The spelling of 115805172 in words is "one hundred fifteen million, eight hundred five thousand, one hundred seventy-two".