117025128 has 64 divisors (see below), whose sum is σ = 354628800. Its totient is φ = 35461440.

The previous prime is 117025109. The next prime is 117025133. The reversal of 117025128 is 821520711.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22251 + ... + 27002.

It is an arithmetic number, because the mean of its divisors is an integer number (5541075).

Almost surely, 2^117025128 is an apocalyptic number.

117025128 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

117025128 is an abundant number, since it is smaller than the sum of its proper divisors (237603672).

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

117025128 is a wasteful number, since it uses less digits than its factorization.

117025128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49279 (or 49269 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 27.

The square root of 117025128 is about 10817.8153062437. The cubic root of 117025128 is about 489.1323364966.

Adding to 117025128 its reverse (821520711), we get a palindrome (938545839).

The spelling of 117025128 in words is "one hundred seventeen million, twenty-five thousand, one hundred twenty-eight".