117120556 has 48 divisors (see below), whose sum is σ = 239904000. Its totient is φ = 48996288.

The previous prime is 117120547. The next prime is 117120557. The reversal of 117120556 is 655021711.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (117120557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 279315 + ... + 279733.

It is an arithmetic number, because the mean of its divisors is an integer number (4998000).

Almost surely, 2^117120556 is an apocalyptic number.

It is an amenable number.

117120556 is an abundant number, since it is smaller than the sum of its proper divisors (122783444).

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

117120556 is a wasteful number, since it uses less digits than its factorization.

117120556 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 646 (or 644 counting only the distinct ones).

The product of its (nonzero) digits is 2100, while the sum is 28.

The square root of 117120556 is about 10822.2250946836. The cubic root of 117120556 is about 489.2652544992.

The spelling of 117120556 in words is "one hundred seventeen million, one hundred twenty thousand, five hundred fifty-six".