18242183 has 2 divisors, whose sum is σ = 18242184. Its totient is φ = 18242182.

The previous prime is 18242179. The next prime is 18242209. The reversal of 18242183 is 38124281.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18242183 - 2² = 18242179 is a prime.

It is equal to p_1165790 and since 18242183 and 1165790 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18242083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9121091 + 9121092.

It is an arithmetic number, because the mean of its divisors is an integer number (9121092).

Almost surely, 2^18242183 is an apocalyptic number.

18242183 is a deficient number, since it is larger than the sum of its proper divisors (1).

18242183 is an equidigital number, since it uses as much as digits as its factorization.

18242183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3072, while the sum is 29.

The square root of 18242183 is about 4271.0868640195. The cubic root of 18242183 is about 263.2442756405.

The spelling of 18242183 in words is "eighteen million, two hundred forty-two thousand, one hundred eighty-three".