117185171 has 2 divisors, whose sum is σ = 117185172. Its totient is φ = 117185170.

The previous prime is 117185113. The next prime is 117185213. The reversal of 117185171 is 171581711.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-117185171 is a prime.

It is not a weakly prime, because it can be changed into another prime (117188171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58592585 + 58592586.

It is an arithmetic number, because the mean of its divisors is an integer number (58592586).

Almost surely, 2^117185171 is an apocalyptic number.

117185171 is a deficient number, since it is larger than the sum of its proper divisors (1).

117185171 is an equidigital number, since it uses as much as digits as its factorization.

117185171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1960, while the sum is 32.

The square root of 117185171 is about 10825.2099748688. The cubic root of 117185171 is about 489.3552132662.

The spelling of 117185171 in words is "one hundred seventeen million, one hundred eighty-five thousand, one hundred seventy-one".