117689185 has 8 divisors (see below), whose sum is σ = 143335296. Its totient is φ = 92745840.

The previous prime is 117689177. The next prime is 117689189. The reversal of 117689185 is 581986711.

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

It is not a de Polignac number, because 117689185 - 2³ = 117689177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117689189) 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, 175321 + ... + 175990.

It is an arithmetic number, because the mean of its divisors is an integer number (17916912).

Almost surely, 2^117689185 is an apocalyptic number.

It is an amenable number.

117689185 is a deficient number, since it is larger than the sum of its proper divisors (25646111).

117689185 is an equidigital number, since it uses as much as digits as its factorization.

117689185 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 351383.

The product of its digits is 120960, while the sum is 46.

The square root of 117689185 is about 10848.4646379107. The cubic root of 117689185 is about 490.0557829038.

The spelling of 117689185 in words is "one hundred seventeen million, six hundred eighty-nine thousand, one hundred eighty-five".