115215700 has 18 divisors (see below), whose sum is σ = 250018286. Its totient is φ = 46086240.

The previous prime is 115215691. The next prime is 115215707. The reversal of 115215700 is 7512511.

It can be written as a sum of positive squares in 3 ways, for example, as 1281424 + 113934276 = 1132^2 + 10674^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115215707) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 575979 + ... + 576178.

Almost surely, 2^115215700 is an apocalyptic number.

115215700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115215700 is an abundant number, since it is smaller than the sum of its proper divisors (134802586).

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

115215700 is a wasteful number, since it uses less digits than its factorization.

115215700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152171 (or 1152164 counting only the distinct ones).

The product of its (nonzero) digits is 350, while the sum is 22.

The square root of 115215700 is about 10733.8576476493. The cubic root of 115215700 is about 486.5982629407.

The spelling of 115215700 in words is "one hundred fifteen million, two hundred fifteen thousand, seven hundred".