115515132 has 24 divisors (see below), whose sum is σ = 270937296. Its totient is φ = 38304768.

The previous prime is 115515077. The next prime is 115515133. The reversal of 115515132 is 231515511.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115515133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22623 + ... + 27254.

It is an arithmetic number, because the mean of its divisors is an integer number (11289054).

Almost surely, 2^115515132 is an apocalyptic number.

115515132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

115515132 is an abundant number, since it is smaller than the sum of its proper divisors (155422164).

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

115515132 is a wasteful number, since it uses less digits than its factorization.

115515132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50077 (or 50075 counting only the distinct ones).

The product of its digits is 750, while the sum is 24.

The square root of 115515132 is about 10747.7966113990. The cubic root of 115515132 is about 487.0194354351.

The spelling of 115515132 in words is "one hundred fifteen million, five hundred fifteen thousand, one hundred thirty-two".