18188059 has 2 divisors, whose sum is σ = 18188060. Its totient is φ = 18188058.

The previous prime is 18188033. The next prime is 18188069. The reversal of 18188059 is 95088181.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 18188059 - 2⁷ = 18187931 is a prime.

It is not a weakly prime, because it can be changed into another prime (18188069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9094029 + 9094030.

It is an arithmetic number, because the mean of its divisors is an integer number (9094030).

Almost surely, 2^18188059 is an apocalyptic number.

18188059 is a deficient number, since it is larger than the sum of its proper divisors (1).

18188059 is an equidigital number, since it uses as much as digits as its factorization.

18188059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23040, while the sum is 40.

The square root of 18188059 is about 4264.7460651251. The cubic root of 18188059 is about 262.9836718262.

The spelling of 18188059 in words is "eighteen million, one hundred eighty-eight thousand, fifty-nine".