18020059 has 2 divisors, whose sum is σ = 18020060. Its totient is φ = 18020058.

The previous prime is 18020039. The next prime is 18020077. The reversal of 18020059 is 95002081.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18020059 - 2⁵ = 18020027 is a prime.

It is not a weakly prime, because it can be changed into another prime (18020039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9010029 + 9010030.

It is an arithmetic number, because the mean of its divisors is an integer number (9010030).

Almost surely, 2^18020059 is an apocalyptic number.

18020059 is a deficient number, since it is larger than the sum of its proper divisors (1).

18020059 is an equidigital number, since it uses as much as digits as its factorization.

18020059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 720, while the sum is 25.

The square root of 18020059 is about 4245.0040047095. The cubic root of 18020059 is about 262.1714541174.

The spelling of 18020059 in words is "eighteen million, twenty thousand, fifty-nine".