18095513 has 2 divisors, whose sum is σ = 18095514. Its totient is φ = 18095512.

The previous prime is 18095489. The next prime is 18095521. The reversal of 18095513 is 31559081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10549504 + 7546009 = 3248^2 + 2747^2 .

It is an emirp because it is prime and its reverse (31559081) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 18095513 - 2¹⁴ = 18079129 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18095513.

It is not a weakly prime, because it can be changed into another prime (18095813) 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, 9047756 + 9047757.

It is an arithmetic number, because the mean of its divisors is an integer number (9047757).

Almost surely, 2^18095513 is an apocalyptic number.

It is an amenable number.

18095513 is a deficient number, since it is larger than the sum of its proper divisors (1).

18095513 is an equidigital number, since it uses as much as digits as its factorization.

18095513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5400, while the sum is 32.

The square root of 18095513 is about 4253.8821093208. The cubic root of 18095513 is about 262.5368679887.

The spelling of 18095513 in words is "eighteen million, ninety-five thousand, five hundred thirteen".