18024169 has 2 divisors, whose sum is σ = 18024170. Its totient is φ = 18024168.

The previous prime is 18024151. The next prime is 18024229. The reversal of 18024169 is 96142081.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15093225 + 2930944 = 3885^2 + 1712^2 .

It is a cyclic number.

It is not a de Polignac number, because 18024169 - 2⁵ = 18024137 is a prime.

It is a super-2 number, since 2×18024169² = 649741336281122, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18024169.

It is not a weakly prime, because it can be changed into another prime (18024469) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9012084 + 9012085.

It is an arithmetic number, because the mean of its divisors is an integer number (9012085).

Almost surely, 2^18024169 is an apocalyptic number.

It is an amenable number.

18024169 is a deficient number, since it is larger than the sum of its proper divisors (1).

18024169 is an equidigital number, since it uses as much as digits as its factorization.

18024169 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The square root of 18024169 is about 4245.4880755927. The cubic root of 18024169 is about 262.1913845509.

The spelling of 18024169 in words is "eighteen million, twenty-four thousand, one hundred sixty-nine".