117994291 has 2 divisors, whose sum is σ = 117994292. Its totient is φ = 117994290.

The previous prime is 117994267. The next prime is 117994319. The reversal of 117994291 is 192499711.

It is a weak prime.

It is an emirp because it is prime and its reverse (192499711) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 117994291 - 2⁵ = 117994259 is a prime.

It is not a weakly prime, because it can be changed into another prime (117994241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 58997145 + 58997146.

It is an arithmetic number, because the mean of its divisors is an integer number (58997146).

Almost surely, 2^117994291 is an apocalyptic number.

117994291 is a deficient number, since it is larger than the sum of its proper divisors (1).

117994291 is an equidigital number, since it uses as much as digits as its factorization.

117994291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 40824, while the sum is 43.

The square root of 117994291 is about 10862.5177099971. The cubic root of 117994291 is about 490.4789028858.

The spelling of 117994291 in words is "one hundred seventeen million, nine hundred ninety-four thousand, two hundred ninety-one".