117139868 has 12 divisors (see below), whose sum is σ = 206809680. Its totient is φ = 58051392.

The previous prime is 117139861. The next prime is 117139871. The reversal of 117139868 is 868931711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117139861) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129128 + ... + 130031.

It is an arithmetic number, because the mean of its divisors is an integer number (17234140).

Almost surely, 2^117139868 is an apocalyptic number.

It is an amenable number.

117139868 is a deficient number, since it is larger than the sum of its proper divisors (89669812).

117139868 is a wasteful number, since it uses less digits than its factorization.

117139868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 259276 (or 259274 counting only the distinct ones).

The product of its digits is 72576, while the sum is 44.

The square root of 117139868 is about 10823.1172958626. The cubic root of 117139868 is about 489.2921446587.

The spelling of 117139868 in words is "one hundred seventeen million, one hundred thirty-nine thousand, eight hundred sixty-eight".