7318013 has 2 divisors, whose sum is σ = 7318014. Its totient is φ = 7318012.

The previous prime is 7318009. The next prime is 7318019. The reversal of 7318013 is 3108137.

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., 7279204 + 38809 = 2698^2 + 197^2 .

It is a cyclic number.

It is not a de Polignac number, because 7318013 - 2² = 7318009 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7318013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7318019) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3659006 + 3659007.

It is an arithmetic number, because the mean of its divisors is an integer number (3659007).

Almost surely, 2^7318013 is an apocalyptic number.

It is an amenable number.

7318013 is a deficient number, since it is larger than the sum of its proper divisors (1).

7318013 is an equidigital number, since it uses as much as digits as its factorization.

7318013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 7318013 is about 2705.1826186045. The cubic root of 7318013 is about 194.1471675319.

The spelling of 7318013 in words is "seven million, three hundred eighteen thousand, thirteen".