117072156 has 24 divisors (see below), whose sum is σ = 275322880. Its totient is φ = 38716272.

The previous prime is 117072143. The next prime is 117072157. The reversal of 117072156 is 651270711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117072157) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36886 + ... + 39933.

Almost surely, 2^117072156 is an apocalyptic number.

It is an amenable number.

117072156 is an abundant number, since it is smaller than the sum of its proper divisors (158250724).

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

117072156 is a wasteful number, since it uses less digits than its factorization.

117072156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76953 (or 76951 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 30.

The square root of 117072156 is about 10819.9887245782. The cubic root of 117072156 is about 489.1978490216.

The spelling of 117072156 in words is "one hundred seventeen million, seventy-two thousand, one hundred fifty-six".