13030513 has 2 divisors, whose sum is σ = 13030514. Its totient is φ = 13030512.

The previous prime is 13030499. The next prime is 13030543. The reversal of 13030513 is 31503031.

13030513 = 2552² + 2553².

13030513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6517809 + 6512704 = 2553^2 + 2552^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13030513 is a prime.

It is not a weakly prime, because it can be changed into another prime (13030543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6515256 + 6515257.

It is an arithmetic number, because the mean of its divisors is an integer number (6515257).

Almost surely, 2^13030513 is an apocalyptic number.

13030513 is the 2553-rd centered square number.

It is an amenable number.

13030513 is a deficient number, since it is larger than the sum of its proper divisors (1).

13030513 is an equidigital number, since it uses as much as digits as its factorization.

13030513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 13030513 is about 3609.7801872136. The cubic root of 13030513 is about 235.3172898368.

Adding to 13030513 its reverse (31503031), we get a palindrome (44533544).

The spelling of 13030513 in words is "thirteen million, thirty thousand, five hundred thirteen".