115012521 has 32 divisors (see below), whose sum is σ = 189840000. Its totient is φ = 68330304.

The previous prime is 115012507. The next prime is 115012523. The reversal of 115012521 is 125210511.

It is not a de Polignac number, because 115012521 - 2⁷ = 115012393 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 115012494 and 115012503.

It is not an unprimeable number, because it can be changed into a prime (115012523) 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 31 ways as a sum of consecutive naturals, for example, 4530 + ... + 15828.

It is an arithmetic number, because the mean of its divisors is an integer number (5932500).

Almost surely, 2^115012521 is an apocalyptic number.

It is an amenable number.

115012521 is a deficient number, since it is larger than the sum of its proper divisors (74827479).

115012521 is a wasteful number, since it uses less digits than its factorization.

115012521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11350 (or 11344 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 18.

The square root of 115012521 is about 10724.3890735090. The cubic root of 115012521 is about 486.3120614323.

The spelling of 115012521 in words is "one hundred fifteen million, twelve thousand, five hundred twenty-one".