117488581 has 8 divisors (see below), whose sum is σ = 142171200. Its totient is φ = 94780608.

The previous prime is 117488573. The next prime is 117488603. The reversal of 117488581 is 185884711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117488581 - 2³ = 117488573 is a prime.

It is a super-2 number, since 2×117488581² = 27607133330787122, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117488521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 493531 + ... + 493768.

It is an arithmetic number, because the mean of its divisors is an integer number (17771400).

Almost surely, 2^117488581 is an apocalyptic number.

It is an amenable number.

117488581 is a deficient number, since it is larger than the sum of its proper divisors (24682619).

117488581 is an equidigital number, since it uses as much as digits as its factorization.

117488581 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987323.

The product of its digits is 71680, while the sum is 43.

The square root of 117488581 is about 10839.2149623485. The cubic root of 117488581 is about 489.7771873278. Note that the first 3 decimals are identical.

The spelling of 117488581 in words is "one hundred seventeen million, four hundred eighty-eight thousand, five hundred eighty-one".