115020657 has 24 divisors (see below), whose sum is σ = 180015264. Its totient is φ = 70487424.

The previous prime is 115020637. The next prime is 115020671. The reversal of 115020657 is 756020511.

115020657 is a `hidden beast` number, since 1 + 1 + 5 + 0 + 2 + 0 + 657 = 666.

It is not a de Polignac number, because 115020657 - 2⁶ = 115020593 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 115020657.

It is not an unprimeable number, because it can be changed into a prime (115020637) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2163 + ... + 15320.

It is an arithmetic number, because the mean of its divisors is an integer number (7500636).

Almost surely, 2^115020657 is an apocalyptic number.

115020657 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

115020657 is a deficient number, since it is larger than the sum of its proper divisors (64994607).

115020657 is a wasteful number, since it uses less digits than its factorization.

115020657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17549 (or 17546 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 27.

The square root of 115020657 is about 10724.7683891075. The cubic root of 115020657 is about 486.3235284204.

The spelling of 115020657 in words is "one hundred fifteen million, twenty thousand, six hundred fifty-seven".