117634631 has 4 divisors (see below), whose sum is σ = 117685152. Its totient is φ = 117584112.

The previous prime is 117634603. The next prime is 117634651. The reversal of 117634631 is 136436711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136436711 = 1487 ⋅91753.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117634631 is a prime.

It is a super-2 number, since 2×117634631² = 27675812821012322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117634651) 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, 21590 + ... + 26483.

It is an arithmetic number, because the mean of its divisors is an integer number (29421288).

Almost surely, 2^117634631 is an apocalyptic number.

117634631 is a deficient number, since it is larger than the sum of its proper divisors (50521).

117634631 is an equidigital number, since it uses as much as digits as its factorization.

117634631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50520.

The product of its digits is 9072, while the sum is 32.

The square root of 117634631 is about 10845.9499814447. The cubic root of 117634631 is about 489.9800505553.

The spelling of 117634631 in words is "one hundred seventeen million, six hundred thirty-four thousand, six hundred thirty-one".