115132520 has 16 divisors (see below), whose sum is σ = 259048260. Its totient is φ = 46052992.

The previous prime is 115132519. The next prime is 115132529. The reversal of 115132520 is 25231511.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 114361636 + 770884 = 10694^2 + 878^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 115132492 and 115132501.

It is not an unprimeable number, because it can be changed into a prime (115132529) 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, 1439117 + ... + 1439196.

Almost surely, 2^115132520 is an apocalyptic number.

115132520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

115132520 is an abundant number, since it is smaller than the sum of its proper divisors (143915740).

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

115132520 is a wasteful number, since it uses less digits than its factorization.

115132520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2878324 (or 2878320 counting only the distinct ones).

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 115132520 is about 10729.9822926229. The cubic root of 115132520 is about 486.4811348416.

The spelling of 115132520 in words is "one hundred fifteen million, one hundred thirty-two thousand, five hundred twenty".