117778152 has 16 divisors (see below), whose sum is σ = 294445440. Its totient is φ = 39259376.

The previous prime is 117778151. The next prime is 117778181. The reversal of 117778152 is 251877711.

It is a self number, because there is not a number n which added to its sum of digits gives 117778152.

It is not an unprimeable number, because it can be changed into a prime (117778151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2453688 + ... + 2453735.

It is an arithmetic number, because the mean of its divisors is an integer number (18402840).

Almost surely, 2^117778152 is an apocalyptic number.

117778152 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

117778152 is an abundant number, since it is smaller than the sum of its proper divisors (176667288).

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

117778152 is a wasteful number, since it uses less digits than its factorization.

117778152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4907432 (or 4907428 counting only the distinct ones).

The product of its digits is 27440, while the sum is 39.

The square root of 117778152 is about 10852.5643052691. The cubic root of 117778152 is about 490.1792374967.

The spelling of 117778152 in words is "one hundred seventeen million, seven hundred seventy-eight thousand, one hundred fifty-two".