117585158 has 16 divisors (see below), whose sum is σ = 186967440. Its totient is φ = 55270656.

The previous prime is 117585157. The next prime is 117585161. The reversal of 117585158 is 851585711.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117585151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42485 + ... + 45167.

It is an arithmetic number, because the mean of its divisors is an integer number (11685465).

Almost surely, 2^117585158 is an apocalyptic number.

117585158 is a deficient number, since it is larger than the sum of its proper divisors (69382282).

117585158 is a wasteful number, since it uses less digits than its factorization.

117585158 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3991.

The product of its digits is 56000, while the sum is 41.

The square root of 117585158 is about 10843.6690285161. The cubic root of 117585158 is about 489.9113514488.

The spelling of 117585158 in words is "one hundred seventeen million, five hundred eighty-five thousand, one hundred fifty-eight".