117256585 has 4 divisors (see below), whose sum is σ = 140707908. Its totient is φ = 93805264.

The previous prime is 117256537. The next prime is 117256591. The reversal of 117256585 is 585652711.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 26378496 + 90878089 = 5136^2 + 9533^2 .

It is a cyclic number.

It is not a de Polignac number, because 117256585 - 2¹¹ = 117254537 is a prime.

It is a Duffinian number.

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, 11725654 + ... + 11725663.

It is an arithmetic number, because the mean of its divisors is an integer number (35176977).

Almost surely, 2^117256585 is an apocalyptic number.

It is an amenable number.

117256585 is a deficient number, since it is larger than the sum of its proper divisors (23451323).

117256585 is an equidigital number, since it uses as much as digits as its factorization.

117256585 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23451322.

The product of its digits is 84000, while the sum is 40.

The square root of 117256585 is about 10828.5079766328. The cubic root of 117256585 is about 489.4545993242.

The spelling of 117256585 in words is "one hundred seventeen million, two hundred fifty-six thousand, five hundred eighty-five".