113633861 has 8 divisors (see below), whose sum is σ = 128239200. Its totient is φ = 99741040.

The previous prime is 113633857. The next prime is 113633873. The reversal of 113633861 is 168336311.

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

It is a cyclic number.

It is not a de Polignac number, because 113633861 - 2² = 113633857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113633801) 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, 177791 + ... + 178428.

It is an arithmetic number, because the mean of its divisors is an integer number (16029900).

Almost surely, 2^113633861 is an apocalyptic number.

113633861 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113633861 is a deficient number, since it is larger than the sum of its proper divisors (14605339).

113633861 is a wasteful number, since it uses less digits than its factorization.

113633861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356259.

The product of its digits is 7776, while the sum is 32.

The square root of 113633861 is about 10659.9184330838. The cubic root of 113633861 is about 484.3610972964.

The spelling of 113633861 in words is "one hundred thirteen million, six hundred thirty-three thousand, eight hundred sixty-one".