113615999 has 4 divisors (see below), whose sum is σ = 129846864. Its totient is φ = 97385136.

The previous prime is 113615993. The next prime is 113616001. The reversal of 113615999 is 999516311.

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

It is a cyclic number.

It is not a de Polignac number, because 113615999 - 2¹² = 113611903 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113615993) 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, 8115422 + ... + 8115435.

It is an arithmetic number, because the mean of its divisors is an integer number (32461716).

Almost surely, 2^113615999 is an apocalyptic number.

113615999 is a deficient number, since it is larger than the sum of its proper divisors (16230865).

113615999 is an equidigital number, since it uses as much as digits as its factorization.

113615999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16230864.

The product of its digits is 65610, while the sum is 44.

The square root of 113615999 is about 10659.0805888688. The cubic root of 113615999 is about 484.3357172111.

The spelling of 113615999 in words is "one hundred thirteen million, six hundred fifteen thousand, nine hundred ninety-nine".