117988144 has 10 divisors (see below), whose sum is σ = 228602060. Its totient is φ = 58994064.

The previous prime is 117988133. The next prime is 117988147. The reversal of 117988144 is 441889711.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 117988144.

It is not an unprimeable number, because it can be changed into a prime (117988147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3687114 + ... + 3687145.

It is an arithmetic number, because the mean of its divisors is an integer number (22860206).

Almost surely, 2^117988144 is an apocalyptic number.

It is an amenable number.

117988144 is a deficient number, since it is larger than the sum of its proper divisors (110613916).

117988144 is an equidigital number, since it uses as much as digits as its factorization.

117988144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7374267 (or 7374261 counting only the distinct ones).

The product of its digits is 64512, while the sum is 43.

The square root of 117988144 is about 10862.2347608584. The cubic root of 117988144 is about 490.4703854506.

The spelling of 117988144 in words is "one hundred seventeen million, nine hundred eighty-eight thousand, one hundred forty-four".