18256027 has 2 divisors, whose sum is σ = 18256028. Its totient is φ = 18256026.

The previous prime is 18256013. The next prime is 18256057. The reversal of 18256027 is 72065281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18256027 - 2¹⁵ = 18223259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18256027.

It is not a weakly prime, because it can be changed into another prime (18256057) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9128013 + 9128014.

It is an arithmetic number, because the mean of its divisors is an integer number (9128014).

Almost surely, 2^18256027 is an apocalyptic number.

18256027 is a deficient number, since it is larger than the sum of its proper divisors (1).

18256027 is an equidigital number, since it uses as much as digits as its factorization.

18256027 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6720, while the sum is 31.

The square root of 18256027 is about 4272.7072214230. The cubic root of 18256027 is about 263.3108508641.

The spelling of 18256027 in words is "eighteen million, two hundred fifty-six thousand, twenty-seven".