18295159 has 2 divisors, whose sum is σ = 18295160. Its totient is φ = 18295158.

The previous prime is 18295141. The next prime is 18295171. The reversal of 18295159 is 95159281.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18295159 - 2⁵ = 18295127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18295559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9147579 + 9147580.

It is an arithmetic number, because the mean of its divisors is an integer number (9147580).

Almost surely, 2^18295159 is an apocalyptic number.

18295159 is a deficient number, since it is larger than the sum of its proper divisors (1).

18295159 is an equidigital number, since it uses as much as digits as its factorization.

18295159 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32400, while the sum is 40.

The square root of 18295159 is about 4277.2840681909. The cubic root of 18295159 is about 263.4988531936.

The spelling of 18295159 in words is "eighteen million, two hundred ninety-five thousand, one hundred fifty-nine".