115631579 has 8 divisors (see below), whose sum is σ = 132262368. Its totient is φ = 99028800.

The previous prime is 115631491. The next prime is 115631627. The reversal of 115631579 is 975136511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 115631579 - 2¹⁶ = 115566043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (115631279) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2759 + ... + 15455.

It is an arithmetic number, because the mean of its divisors is an integer number (16532796).

Almost surely, 2^115631579 is an apocalyptic number.

115631579 is a deficient number, since it is larger than the sum of its proper divisors (16630789).

115631579 is a wasteful number, since it uses less digits than its factorization.

115631579 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14005.

The product of its digits is 28350, while the sum is 38.

The square root of 115631579 is about 10753.2124967379. The cubic root of 115631579 is about 487.1830298935.

The spelling of 115631579 in words is "one hundred fifteen million, six hundred thirty-one thousand, five hundred seventy-nine".