117755631 has 24 divisors (see below), whose sum is σ = 201096480. Its totient is φ = 64967616.

The previous prime is 117755621. The next prime is 117755641. The reversal of 117755631 is 136557711.

117755631 is a `hidden beast` number, since 1 + 1 + 77 + 556 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (117755621) and next prime (117755641).

It is not a de Polignac number, because 117755631 - 2¹⁰ = 117754607 is a prime.

It is a super-2 number, since 2×117755631² = 27732777264416322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117755621) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30400 + ... + 34053.

It is an arithmetic number, because the mean of its divisors is an integer number (8379020).

Almost surely, 2^117755631 is an apocalyptic number.

117755631 is a deficient number, since it is larger than the sum of its proper divisors (83340849).

117755631 is a wasteful number, since it uses less digits than its factorization.

117755631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64495 (or 64492 counting only the distinct ones).

The product of its digits is 22050, while the sum is 36.

The square root of 117755631 is about 10851.5266667875. The cubic root of 117755631 is about 490.1479922272.

The spelling of 117755631 in words is "one hundred seventeen million, seven hundred fifty-five thousand, six hundred thirty-one".