117013931 has 4 divisors (see below), whose sum is σ = 118495200. Its totient is φ = 115532664.

The previous prime is 117013901. The next prime is 117013937. The reversal of 117013931 is 139310711.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 139310711 = 521 ⋅267391.

It is a cyclic number.

It is not a de Polignac number, because 117013931 - 2⁶ = 117013867 is a prime.

It is a super-2 number, since 2×117013931² = 27384520096145522, which contains 22 as substring.

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 117013931.

It is not an unprimeable number, because it can be changed into a prime (117013937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740516 + ... + 740673.

It is an arithmetic number, because the mean of its divisors is an integer number (29623800).

Almost surely, 2^117013931 is an apocalyptic number.

117013931 is a deficient number, since it is larger than the sum of its proper divisors (1481269).

117013931 is an equidigital number, since it uses as much as digits as its factorization.

117013931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481268.

The product of its (nonzero) digits is 567, while the sum is 26.

The square root of 117013931 is about 10817.2977679271. The cubic root of 117013931 is about 489.1167358885.

The spelling of 117013931 in words is "one hundred seventeen million, thirteen thousand, nine hundred thirty-one".