18140179 has 2 divisors, whose sum is σ = 18140180. Its totient is φ = 18140178.

The previous prime is 18140159. The next prime is 18140189. The reversal of 18140179 is 97104181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18140179 - 2¹⁷ = 18009107 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18140179.

It is not a weakly prime, because it can be changed into another prime (18140159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9070089 + 9070090.

It is an arithmetic number, because the mean of its divisors is an integer number (9070090).

Almost surely, 2^18140179 is an apocalyptic number.

18140179 is a deficient number, since it is larger than the sum of its proper divisors (1).

18140179 is an equidigital number, since it uses as much as digits as its factorization.

18140179 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 18140179 is about 4259.1289015478. The cubic root of 18140179 is about 262.7527011738.

The spelling of 18140179 in words is "eighteen million, one hundred forty thousand, one hundred seventy-nine".