18018059 has 2 divisors, whose sum is σ = 18018060. Its totient is φ = 18018058.

The previous prime is 18018053. The next prime is 18018067. The reversal of 18018059 is 95081081.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18018059 - 2⁴ = 18018043 is a prime.

It is not a weakly prime, because it can be changed into another prime (18018053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9009029 + 9009030.

It is an arithmetic number, because the mean of its divisors is an integer number (9009030).

Almost surely, 2^18018059 is an apocalyptic number.

18018059 is a deficient number, since it is larger than the sum of its proper divisors (1).

18018059 is an equidigital number, since it uses as much as digits as its factorization.

18018059 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 32.

The square root of 18018059 is about 4244.7684271347. The cubic root of 18018059 is about 262.1617545134.

The spelling of 18018059 in words is "eighteen million, eighteen thousand, fifty-nine".