117894163 has 2 divisors, whose sum is σ = 117894164. Its totient is φ = 117894162.

The previous prime is 117894131. The next prime is 117894187. The reversal of 117894163 is 361498711.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 117894163 - 2⁵ = 117894131 is a prime.

It is not a weakly prime, because it can be changed into another prime (117894263) 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, 58947081 + 58947082.

It is an arithmetic number, because the mean of its divisors is an integer number (58947082).

Almost surely, 2^117894163 is an apocalyptic number.

117894163 is a deficient number, since it is larger than the sum of its proper divisors (1).

117894163 is an equidigital number, since it uses as much as digits as its factorization.

117894163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 40.

The square root of 117894163 is about 10857.9078555678. The cubic root of 117894163 is about 490.3401262009.

The spelling of 117894163 in words is "one hundred seventeen million, eight hundred ninety-four thousand, one hundred sixty-three".