113618789 has 4 divisors (see below), whose sum is σ = 114486240. Its totient is φ = 112751340.

The previous prime is 113618779. The next prime is 113618797. The reversal of 113618789 is 987816311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 987816311 = 283 ⋅3490517.

It is a cyclic number.

It is not a de Polignac number, because 113618789 - 2⁴ = 113618773 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 (113618759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 433529 + ... + 433790.

It is an arithmetic number, because the mean of its divisors is an integer number (28621560).

Almost surely, 2^113618789 is an apocalyptic number.

It is an amenable number.

113618789 is a deficient number, since it is larger than the sum of its proper divisors (867451).

113618789 is an equidigital number, since it uses as much as digits as its factorization.

113618789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 867450.

The product of its digits is 72576, while the sum is 44.

The square root of 113618789 is about 10659.2114623925. The cubic root of 113618789 is about 484.3396816926.

The spelling of 113618789 in words is "one hundred thirteen million, six hundred eighteen thousand, seven hundred eighty-nine".