117868159 has 2 divisors, whose sum is σ = 117868160. Its totient is φ = 117868158.

The previous prime is 117868147. The next prime is 117868181. The reversal of 117868159 is 951868711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 117868159 - 2¹⁵ = 117835391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (117868139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58934079 + 58934080.

It is an arithmetic number, because the mean of its divisors is an integer number (58934080).

Almost surely, 2^117868159 is an apocalyptic number.

117868159 is a deficient number, since it is larger than the sum of its proper divisors (1).

117868159 is an equidigital number, since it uses as much as digits as its factorization.

117868159 is an odious number, because the sum of its binary digits is odd.

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

The square root of 117868159 is about 10856.7103212714. The cubic root of 117868159 is about 490.3040719922.

The spelling of 117868159 in words is "one hundred seventeen million, eight hundred sixty-eight thousand, one hundred fifty-nine".