13303613 has 2 divisors, whose sum is σ = 13303614. Its totient is φ = 13303612.

The previous prime is 13303597. The next prime is 13303621. The reversal of 13303613 is 31630331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10355524 + 2948089 = 3218^2 + 1717^2 .

It is an emirp because it is prime and its reverse (31630331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13303613 - 2⁴ = 13303597 is a prime.

It is a super-2 number, since 2×13303613² = 353972237707538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13303643) 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, 6651806 + 6651807.

It is an arithmetic number, because the mean of its divisors is an integer number (6651807).

Almost surely, 2^13303613 is an apocalyptic number.

It is an amenable number.

13303613 is a deficient number, since it is larger than the sum of its proper divisors (1).

13303613 is an equidigital number, since it uses as much as digits as its factorization.

13303613 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 486, while the sum is 20.

The square root of 13303613 is about 3647.4118221007. The cubic root of 13303613 is about 236.9499024710.

Adding to 13303613 its reverse (31630331), we get a palindrome (44933944).

The spelling of 13303613 in words is "thirteen million, three hundred three thousand, six hundred thirteen".