113685591 has 8 divisors (see below), whose sum is σ = 152040064. Its totient is φ = 75560760.

The previous prime is 113685547. The next prime is 113685641. The reversal of 113685591 is 195586311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 113685591 - 2¹⁰ = 113684567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113685521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56251 + ... + 58236.

It is an arithmetic number, because the mean of its divisors is an integer number (19005008).

Almost surely, 2^113685591 is an apocalyptic number.

113685591 is a deficient number, since it is larger than the sum of its proper divisors (38354473).

113685591 is a wasteful number, since it uses less digits than its factorization.

113685591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114821.

The product of its digits is 32400, while the sum is 39.

The square root of 113685591 is about 10662.3445357951. The cubic root of 113685591 is about 484.4345853635.

The spelling of 113685591 in words is "one hundred thirteen million, six hundred eighty-five thousand, five hundred ninety-one".