113618591 has 8 divisors (see below), whose sum is σ = 116537184. Its totient is φ = 110728800.

The previous prime is 113618581. The next prime is 113618611. The reversal of 113618591 is 195816311.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113618591 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 (113618501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 905 + ... + 15101.

It is an arithmetic number, because the mean of its divisors is an integer number (14567148).

Almost surely, 2^113618591 is an apocalyptic number.

113618591 is a deficient number, since it is larger than the sum of its proper divisors (2918593).

113618591 is a wasteful number, since it uses less digits than its factorization.

113618591 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14401.

The product of its digits is 6480, while the sum is 35.

The square root of 113618591 is about 10659.2021746470. The cubic root of 113618591 is about 484.3394003444.

The spelling of 113618591 in words is "one hundred thirteen million, six hundred eighteen thousand, five hundred ninety-one".