117243585 has 64 divisors (see below), whose sum is σ = 224716800. Its totient is φ = 57806784.

The previous prime is 117243563. The next prime is 117243587. The reversal of 117243585 is 585342711.

117243585 is a `hidden beast` number, since 1 + 1 + 72 + 4 + 3 + 585 = 666.

It is not a de Polignac number, because 117243585 - 2⁹ = 117243073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117243587) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109764 + ... + 110826.

It is an arithmetic number, because the mean of its divisors is an integer number (3511200).

Almost surely, 2^117243585 is an apocalyptic number.

117243585 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

117243585 is a deficient number, since it is larger than the sum of its proper divisors (107473215).

117243585 is a wasteful number, since it uses less digits than its factorization.

117243585 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139 (or 1133 counting only the distinct ones).

The product of its digits is 33600, while the sum is 36.

The square root of 117243585 is about 10827.9076926246. The cubic root of 117243585 is about 489.4365103758.

The spelling of 117243585 in words is "one hundred seventeen million, two hundred forty-three thousand, five hundred eighty-five".