18130459 has 2 divisors, whose sum is σ = 18130460. Its totient is φ = 18130458.

The previous prime is 18130451. The next prime is 18130493. The reversal of 18130459 is 95403181.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18130459 - 2³ = 18130451 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 18130459.

It is not a weakly prime, because it can be changed into another prime (18130451) 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, 9065229 + 9065230.

It is an arithmetic number, because the mean of its divisors is an integer number (9065230).

Almost surely, 2^18130459 is an apocalyptic number.

18130459 is a deficient number, since it is larger than the sum of its proper divisors (1).

18130459 is an equidigital number, since it uses as much as digits as its factorization.

18130459 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 31.

The square root of 18130459 is about 4257.9876702499. The cubic root of 18130459 is about 262.7057627809.

The spelling of 18130459 in words is "eighteen million, one hundred thirty thousand, four hundred fifty-nine".