13307813 has 2 divisors, whose sum is σ = 13307814. Its totient is φ = 13307812.

The previous prime is 13307807. The next prime is 13307843. The reversal of 13307813 is 31870331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9840769 + 3467044 = 3137^2 + 1862^2 .

It is a cyclic number.

It is not a de Polignac number, because 13307813 - 2⁸ = 13307557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13307803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6653906 + 6653907.

It is an arithmetic number, because the mean of its divisors is an integer number (6653907).

Almost surely, 2^13307813 is an apocalyptic number.

It is an amenable number.

13307813 is a deficient number, since it is larger than the sum of its proper divisors (1).

13307813 is an equidigital number, since it uses as much as digits as its factorization.

13307813 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 13307813 is about 3647.9875273910. The cubic root of 13307813 is about 236.9748351686.

The spelling of 13307813 in words is "thirteen million, three hundred seven thousand, eight hundred thirteen".