117945178 has 16 divisors (see below), whose sum is σ = 190715616. Its totient is φ = 54382320.

The previous prime is 117945169. The next prime is 117945181. The reversal of 117945178 is 871549711.

It is a super-2 number, since 2×117945178² = 27822130026903368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38325 + ... + 41287.

It is an arithmetic number, because the mean of its divisors is an integer number (11919726).

Almost surely, 2^117945178 is an apocalyptic number.

117945178 is a deficient number, since it is larger than the sum of its proper divisors (72770438).

117945178 is a wasteful number, since it uses less digits than its factorization.

117945178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4509.

The product of its digits is 70560, while the sum is 43.

The square root of 117945178 is about 10860.2568109599. The cubic root of 117945178 is about 490.4108424367.

The spelling of 117945178 in words is "one hundred seventeen million, nine hundred forty-five thousand, one hundred seventy-eight".