113915 has 4 divisors (see below), whose sum is σ = 136704. Its totient is φ = 91128.

The previous prime is 113909. The next prime is 113921. The reversal of 113915 is 519311.

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

It is an interprime number because it is at equal distance from previous prime (113909) and next prime (113921).

It is a cyclic number.

It is not a de Polignac number, because 113915 - 2⁴ = 113899 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11387 + ... + 11396.

It is an arithmetic number, because the mean of its divisors is an integer number (34176).

2¹¹³⁹¹⁵ is an apocalyptic number.

113915 is a deficient number, since it is larger than the sum of its proper divisors (22789).

113915 is an equidigital number, since it uses as much as digits as its factorization.

113915 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22788.

The product of its digits is 135, while the sum is 20.

The square root of 113915 is about 337.5129627140. The cubic root of 113915 is about 48.4760217320.

The spelling of 113915 in words is "one hundred thirteen thousand, nine hundred fifteen".