117489158 has 12 divisors (see below), whose sum is σ = 180433188. Its totient is φ = 57376620.

The previous prime is 117489157. The next prime is 117489161. The reversal of 117489158 is 851984711.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117489157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12188 + ... + 19583.

It is an arithmetic number, because the mean of its divisors is an integer number (15036099).

Almost surely, 2^117489158 is an apocalyptic number.

117489158 is a deficient number, since it is larger than the sum of its proper divisors (62944030).

117489158 is an equidigital number, since it uses as much as digits as its factorization.

117489158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31859 (or 31816 counting only the distinct ones).

The product of its digits is 80640, while the sum is 44.

The square root of 117489158 is about 10839.2415786345. The cubic root of 117489158 is about 489.7779891106. Note that the first 3 decimals are identical.

The spelling of 117489158 in words is "one hundred seventeen million, four hundred eighty-nine thousand, one hundred fifty-eight".