117916171 has 2 divisors, whose sum is σ = 117916172. Its totient is φ = 117916170.

The previous prime is 117916159. The next prime is 117916213. The reversal of 117916171 is 171619711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117916171 - 2¹⁷ = 117785099 is a prime.

It is not a weakly prime, because it can be changed into another prime (117916121) 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 as a sum of consecutive naturals, namely, 58958085 + 58958086.

It is an arithmetic number, because the mean of its divisors is an integer number (58958086).

Almost surely, 2^117916171 is an apocalyptic number.

117916171 is a deficient number, since it is larger than the sum of its proper divisors (1).

117916171 is an equidigital number, since it uses as much as digits as its factorization.

117916171 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2646, while the sum is 34.

The square root of 117916171 is about 10858.9212631826. The cubic root of 117916171 is about 490.3706358653.

The spelling of 117916171 in words is "one hundred seventeen million, nine hundred sixteen thousand, one hundred seventy-one".