117400631 has 4 divisors (see below), whose sum is σ = 117715752. Its totient is φ = 117085512.

The previous prime is 117400609. The next prime is 117400637. The reversal of 117400631 is 136004711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 136004711 = 37 ⋅3675803.

It is a cyclic number.

It is not a de Polignac number, because 117400631 - 2⁶ = 117400567 is a prime.

It is a super-2 number, since 2×117400631² = 27565816318396322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 117400597 and 117400606.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117400637) 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, 157001 + ... + 157746.

It is an arithmetic number, because the mean of its divisors is an integer number (29428938).

Almost surely, 2^117400631 is an apocalyptic number.

117400631 is a deficient number, since it is larger than the sum of its proper divisors (315121).

117400631 is an equidigital number, since it uses as much as digits as its factorization.

117400631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315120.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 117400631 is about 10835.1571746791. The cubic root of 117400631 is about 489.6549437975.

The spelling of 117400631 in words is "one hundred seventeen million, four hundred thousand, six hundred thirty-one".