18180059 has 2 divisors, whose sum is σ = 18180060. Its totient is φ = 18180058.

The previous prime is 18179983. The next prime is 18180073. The reversal of 18180059 is 95008181.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18180059 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (18188059) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9090029 + 9090030.

It is an arithmetic number, because the mean of its divisors is an integer number (9090030).

Almost surely, 2^18180059 is an apocalyptic number.

18180059 is a deficient number, since it is larger than the sum of its proper divisors (1).

18180059 is an equidigital number, since it uses as much as digits as its factorization.

18180059 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 18180059 is about 4263.8080397691. The cubic root of 18180059 is about 262.9451084679.

The spelling of 18180059 in words is "eighteen million, one hundred eighty thousand, fifty-nine".