18148159 has 2 divisors, whose sum is σ = 18148160. Its totient is φ = 18148158.

The previous prime is 18148153. The next prime is 18148177. The reversal of 18148159 is 95184181.

It is a weak prime.

It is an emirp because it is prime and its reverse (95184181) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18148159 - 2¹³ = 18139967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18148153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9074079 + 9074080.

It is an arithmetic number, because the mean of its divisors is an integer number (9074080).

Almost surely, 2^18148159 is an apocalyptic number.

18148159 is a deficient number, since it is larger than the sum of its proper divisors (1).

18148159 is an equidigital number, since it uses as much as digits as its factorization.

18148159 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11520, while the sum is 37.

The square root of 18148159 is about 4260.0656098234. The cubic root of 18148159 is about 262.7912244830.

The spelling of 18148159 in words is "eighteen million, one hundred forty-eight thousand, one hundred fifty-nine".