18104159 has 2 divisors, whose sum is σ = 18104160. Its totient is φ = 18104158.

The previous prime is 18104153. The next prime is 18104173. The reversal of 18104159 is 95140181.

It is a weak prime.

It is an emirp because it is prime and its reverse (95140181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18104159 - 2⁴ = 18104143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18104153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9052079 + 9052080.

It is an arithmetic number, because the mean of its divisors is an integer number (9052080).

Almost surely, 2^18104159 is an apocalyptic number.

18104159 is a deficient number, since it is larger than the sum of its proper divisors (1).

18104159 is an equidigital number, since it uses as much as digits as its factorization.

18104159 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 29.

The square root of 18104159 is about 4254.8982361509. The cubic root of 18104159 is about 262.5786745283.

The spelling of 18104159 in words is "eighteen million, one hundred four thousand, one hundred fifty-nine".