115732520 has 16 divisors (see below), whose sum is σ = 260398260. Its totient is φ = 46292992.

The previous prime is 115732511. The next prime is 115732523. The reversal of 115732520 is 25237511.

It can be written as a sum of positive squares in 2 ways, for example, as 94517284 + 21215236 = 9722^2 + 4606^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 115732520.

It is not an unprimeable number, because it can be changed into a prime (115732523) 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 3 ways as a sum of consecutive naturals, for example, 1446617 + ... + 1446696.

Almost surely, 2^115732520 is an apocalyptic number.

115732520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115732520 is an abundant number, since it is smaller than the sum of its proper divisors (144665740).

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

115732520 is a wasteful number, since it uses less digits than its factorization.

115732520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2893324 (or 2893320 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 26.

The square root of 115732520 is about 10757.9050005101. The cubic root of 115732520 is about 487.3247513849.

The spelling of 115732520 in words is "one hundred fifteen million, seven hundred thirty-two thousand, five hundred twenty".