115631149 has 8 divisors (see below), whose sum is σ = 119871360. Its totient is φ = 111407856.

The previous prime is 115631137. The next prime is 115631177. The reversal of 115631149 is 941136511.

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 115631149 - 2²⁵ = 82076717 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 115631149.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115631129) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 10624 + ... + 18550.

It is an arithmetic number, because the mean of its divisors is an integer number (14983920).

Almost surely, 2^115631149 is an apocalyptic number.

It is an amenable number.

115631149 is a deficient number, since it is larger than the sum of its proper divisors (4240211).

115631149 is an equidigital number, since it uses as much as digits as its factorization.

115631149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8459.

The product of its digits is 3240, while the sum is 31.

The square root of 115631149 is about 10753.1925026943. The cubic root of 115631149 is about 487.1824259957.

The spelling of 115631149 in words is "one hundred fifteen million, six hundred thirty-one thousand, one hundred forty-nine".