13513289 has 2 divisors, whose sum is σ = 13513290. Its totient is φ = 13513288.

The previous prime is 13513277. The next prime is 13513319. The reversal of 13513289 is 98231531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10291264 + 3222025 = 3208^2 + 1795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13513289 is a prime.

It is not a weakly prime, because it can be changed into another prime (13513789) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6756644 + 6756645.

It is an arithmetic number, because the mean of its divisors is an integer number (6756645).

Almost surely, 2^13513289 is an apocalyptic number.

It is an amenable number.

13513289 is a deficient number, since it is larger than the sum of its proper divisors (1).

13513289 is an equidigital number, since it uses as much as digits as its factorization.

13513289 is an odious number, because the sum of its binary digits is odd.

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

The square root of 13513289 is about 3676.0425732029. The cubic root of 13513289 is about 238.1882617012.

The spelling of 13513289 in words is "thirteen million, five hundred thirteen thousand, two hundred eighty-nine".