18201059 has 2 divisors, whose sum is σ = 18201060. Its totient is φ = 18201058.

The previous prime is 18201049. The next prime is 18201091. The reversal of 18201059 is 95010281.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (95010281) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18201059 - 2¹² = 18196963 is a prime.

It is a Chen prime.

It is equal to p_1163276 and since 18201059 and 1163276 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (18201049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9100529 + 9100530.

It is an arithmetic number, because the mean of its divisors is an integer number (9100530).

Almost surely, 2^18201059 is an apocalyptic number.

18201059 is a deficient number, since it is larger than the sum of its proper divisors (1).

18201059 is an equidigital number, since it uses as much as digits as its factorization.

18201059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 26.

The square root of 18201059 is about 4266.2699164493. The cubic root of 18201059 is about 263.0463131729.

The spelling of 18201059 in words is "eighteen million, two hundred one thousand, fifty-nine".