113493609 has 16 divisors (see below), whose sum is σ = 168517440. Its totient is φ = 75492000.

The previous prime is 113493587. The next prime is 113493613. The reversal of 113493609 is 906394311.

113493609 is a `hidden beast` number, since 1 + 1 + 3 + 49 + 3 + 609 = 666.

It is not a de Polignac number, because 113493609 - 2⁵ = 113493577 is a prime.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (113493629) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8109 + ... + 17109.

It is an arithmetic number, because the mean of its divisors is an integer number (10532340).

Almost surely, 2^113493609 is an apocalyptic number.

It is an amenable number.

113493609 is a deficient number, since it is larger than the sum of its proper divisors (55023831).

113493609 is an equidigital number, since it uses as much as digits as its factorization.

113493609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9477 (or 9471 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 113493609 is about 10653.3379276169. The cubic root of 113493609 is about 484.1617418705.

The spelling of 113493609 in words is "one hundred thirteen million, four hundred ninety-three thousand, six hundred nine".