115631847 has 8 divisors (see below), whose sum is σ = 171306480. Its totient is φ = 77087880.

The previous prime is 115631843. The next prime is 115631861. The reversal of 115631847 is 748136511.

115631847 is a `hidden beast` number, since 1 + 15 + 631 + 8 + 4 + 7 = 666.

It is not a de Polignac number, because 115631847 - 2² = 115631843 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (115631843) 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, 2141304 + ... + 2141357.

It is an arithmetic number, because the mean of its divisors is an integer number (21413310).

Almost surely, 2^115631847 is an apocalyptic number.

115631847 is a deficient number, since it is larger than the sum of its proper divisors (55674633).

115631847 is an equidigital number, since it uses as much as digits as its factorization.

115631847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4282670 (or 4282664 counting only the distinct ones).

The product of its digits is 20160, while the sum is 36.

The square root of 115631847 is about 10753.2249581230. The cubic root of 115631847 is about 487.1834062756.

The spelling of 115631847 in words is "one hundred fifteen million, six hundred thirty-one thousand, eight hundred forty-seven".