115406613 has 30 divisors (see below), whose sum is σ = 200550966. Its totient is φ = 65944368.

The previous prime is 115406587. The next prime is 115406633. The reversal of 115406613 is 316604511.

115406613 is a `hidden beast` number, since 1 + 1 + 5 + 40 + 6 + 613 = 666.

It can be written as a sum of positive squares in only one way, i.e., 109369764 + 6036849 = 10458^2 + 2457^2 .

It is not a de Polignac number, because 115406613 - 2⁶ = 115406549 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115406633) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 10570 + ... + 18507.

Almost surely, 2^115406613 is an apocalyptic number.

It is an amenable number.

115406613 is a deficient number, since it is larger than the sum of its proper divisors (85144353).

115406613 is an equidigital number, since it uses as much as digits as its factorization.

115406613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29103 (or 29087 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 115406613 is about 10742.7469950660. The cubic root of 115406613 is about 486.8668798930.

The spelling of 115406613 in words is "one hundred fifteen million, four hundred six thousand, six hundred thirteen".