117128456 has 16 divisors (see below), whose sum is σ = 220933440. Its totient is φ = 58212880.

The previous prime is 117128449. The next prime is 117128461. The reversal of 117128456 is 654821711.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42500 + ... + 45171.

It is an arithmetic number, because the mean of its divisors is an integer number (13808340).

Almost surely, 2^117128456 is an apocalyptic number.

It is an amenable number.

117128456 is a deficient number, since it is larger than the sum of its proper divisors (103804984).

117128456 is a wasteful number, since it uses less digits than its factorization.

117128456 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87844 (or 87840 counting only the distinct ones).

The product of its digits is 13440, while the sum is 35.

The square root of 117128456 is about 10822.5900781652. The cubic root of 117128456 is about 489.2762548699.

The spelling of 117128456 in words is "one hundred seventeen million, one hundred twenty-eight thousand, four hundred fifty-six".