113649873 has 4 divisors (see below), whose sum is σ = 151533168. Its totient is φ = 75766580.

The previous prime is 113649859. The next prime is 113649911. The reversal of 113649873 is 378946311.

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.

It is a cyclic number.

It is not a de Polignac number, because 113649873 - 2⁸ = 113649617 is a prime.

It is a super-2 number, since 2×113649873² = 25832587265832258, which contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (113649673) 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, 18941643 + ... + 18941648.

It is an arithmetic number, because the mean of its divisors is an integer number (37883292).

Almost surely, 2^113649873 is an apocalyptic number.

It is an amenable number.

113649873 is a deficient number, since it is larger than the sum of its proper divisors (37883295).

113649873 is an equidigital number, since it uses as much as digits as its factorization.

113649873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37883294.

The product of its digits is 108864, while the sum is 42.

The square root of 113649873 is about 10660.6694442704. The cubic root of 113649873 is about 484.3838464593.

The spelling of 113649873 in words is "one hundred thirteen million, six hundred forty-nine thousand, eight hundred seventy-three".