115133515 has 32 divisors (see below), whose sum is σ = 166717440. Its totient is φ = 74621184.

The previous prime is 115133477. The next prime is 115133519. The reversal of 115133515 is 515331511.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-115133515 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115133515.

It is not an unprimeable number, because it can be changed into a prime (115133519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70842 + ... + 72448.

It is an arithmetic number, because the mean of its divisors is an integer number (5209920).

Almost surely, 2^115133515 is an apocalyptic number.

115133515 is a deficient number, since it is larger than the sum of its proper divisors (51583925).

115133515 is a wasteful number, since it uses less digits than its factorization.

115133515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1731.

The product of its digits is 1125, while the sum is 25.

The square root of 115133515 is about 10730.0286579300. The cubic root of 115133515 is about 486.4825362624.

The spelling of 115133515 in words is "one hundred fifteen million, one hundred thirty-three thousand, five hundred fifteen".