117778156 has 12 divisors (see below), whose sum is σ = 206206000. Its totient is φ = 58862160.

The previous prime is 117778151. The next prime is 117778181. The reversal of 117778156 is 651877711.

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

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5641 + ... + 16351.

Almost surely, 2^117778156 is an apocalyptic number.

It is an amenable number.

117778156 is a deficient number, since it is larger than the sum of its proper divisors (88427844).

117778156 is a wasteful number, since it uses less digits than its factorization.

117778156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13464 (or 13462 counting only the distinct ones).

The product of its digits is 82320, while the sum is 43.

The square root of 117778156 is about 10852.5644895573. The cubic root of 117778156 is about 490.1792430459.

The spelling of 117778156 in words is "one hundred seventeen million, seven hundred seventy-eight thousand, one hundred fifty-six".