18295313 has 2 divisors, whose sum is σ = 18295314. Its totient is φ = 18295312.

The previous prime is 18295289. The next prime is 18295331. The reversal of 18295313 is 31359281.

Together with next prime (18295331) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9193024 + 9102289 = 3032^2 + 3017^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18295313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 18295313.

It is not a weakly prime, because it can be changed into another prime (18295513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9147656 + 9147657.

It is an arithmetic number, because the mean of its divisors is an integer number (9147657).

Almost surely, 2^18295313 is an apocalyptic number.

It is an amenable number.

18295313 is a deficient number, since it is larger than the sum of its proper divisors (1).

18295313 is an equidigital number, since it uses as much as digits as its factorization.

18295313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 32.

The square root of 18295313 is about 4277.3020702307. The cubic root of 18295313 is about 263.4995925278.

The spelling of 18295313 in words is "eighteen million, two hundred ninety-five thousand, three hundred thirteen".