113942865 has 16 divisors (see below), whose sum is σ = 185400000. Its totient is φ = 59739072.

The previous prime is 113942861. The next prime is 113942929. The reversal of 113942865 is 568249311.

It is not a de Polignac number, because 113942865 - 2² = 113942861 is a prime.

It is not an unprimeable number, because it can be changed into a prime (113942861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63490 + ... + 65259.

It is an arithmetic number, because the mean of its divisors is an integer number (11587500).

Almost surely, 2^113942865 is an apocalyptic number.

113942865 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

113942865 is a deficient number, since it is larger than the sum of its proper divisors (71457135).

113942865 is a wasteful number, since it uses less digits than its factorization.

113942865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128816.

The product of its digits is 51840, while the sum is 39.

The square root of 113942865 is about 10674.4023251890. The cubic root of 113942865 is about 484.7997401874.

The spelling of 113942865 in words is "one hundred thirteen million, nine hundred forty-two thousand, eight hundred sixty-five".