115615659 has 4 divisors (see below), whose sum is σ = 154154216. Its totient is φ = 77077104.

The previous prime is 115615651. The next prime is 115615667. The reversal of 115615659 is 956516511.

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 (115615651) and next prime (115615667).

It is not a de Polignac number, because 115615659 - 2³ = 115615651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (115615651) 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, 19269274 + ... + 19269279.

It is an arithmetic number, because the mean of its divisors is an integer number (38538554).

Almost surely, 2^115615659 is an apocalyptic number.

115615659 is a deficient number, since it is larger than the sum of its proper divisors (38538557).

115615659 is an equidigital number, since it uses as much as digits as its factorization.

115615659 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38538556.

The product of its digits is 40500, while the sum is 39.

The square root of 115615659 is about 10752.4722273531. The cubic root of 115615659 is about 487.1606706330.

The spelling of 115615659 in words is "one hundred fifteen million, six hundred fifteen thousand, six hundred fifty-nine".