113431859 has 4 divisors (see below), whose sum is σ = 113475816. Its totient is φ = 113387904.

The previous prime is 113431817. The next prime is 113431861. The reversal of 113431859 is 958134311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113431859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113430859) 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, 17849 + ... + 23354.

It is an arithmetic number, because the mean of its divisors is an integer number (28368954).

Almost surely, 2^113431859 is an apocalyptic number.

113431859 is a deficient number, since it is larger than the sum of its proper divisors (43957).

113431859 is an equidigital number, since it uses as much as digits as its factorization.

113431859 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43956.

The product of its digits is 12960, while the sum is 35.

The square root of 113431859 is about 10650.4393806077. The cubic root of 113431859 is about 484.0739178023.

The spelling of 113431859 in words is "one hundred thirteen million, four hundred thirty-one thousand, eight hundred fifty-nine".