18095249 has 2 divisors, whose sum is σ = 18095250. Its totient is φ = 18095248.

The previous prime is 18095197. The next prime is 18095251. The reversal of 18095249 is 94259081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17977600 + 117649 = 4240^2 + 343^2 .

It is a cyclic number.

It is not a de Polignac number, because 18095249 - 2¹² = 18091153 is a prime.

It is a Sophie Germain prime.

Together with 18095251, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (18095279) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9047624 + 9047625.

It is an arithmetic number, because the mean of its divisors is an integer number (9047625).

Almost surely, 2^18095249 is an apocalyptic number.

It is an amenable number.

18095249 is a deficient number, since it is larger than the sum of its proper divisors (1).

18095249 is an equidigital number, since it uses as much as digits as its factorization.

18095249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 38.

The square root of 18095249 is about 4253.8510787285. The cubic root of 18095249 is about 262.5355912437.

The spelling of 18095249 in words is "eighteen million, ninety-five thousand, two hundred forty-nine".