117111144 has 16 divisors (see below), whose sum is σ = 292777920. Its totient is φ = 39037040.

The previous prime is 117111143. The next prime is 117111151. The reversal of 117111144 is 441111711.

It is a self number, because there is not a number n which added to its sum of digits gives 117111144.

It is not an unprimeable number, because it can be changed into a prime (117111143) 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, 2439792 + ... + 2439839.

It is an arithmetic number, because the mean of its divisors is an integer number (18298620).

Almost surely, 2^117111144 is an apocalyptic number.

It is an amenable number.

117111144 is an abundant number, since it is smaller than the sum of its proper divisors (175666776).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

117111144 is a wasteful number, since it uses less digits than its factorization.

117111144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4879640 (or 4879636 counting only the distinct ones).

The product of its digits is 112, while the sum is 21.

The square root of 117111144 is about 10821.7902400666. The cubic root of 117111144 is about 489.2521480953.

Adding to 117111144 its reverse (441111711), we get a palindrome (558222855).

The spelling of 117111144 in words is "one hundred seventeen million, one hundred eleven thousand, one hundred forty-four".