13213289 has 2 divisors, whose sum is σ = 13213290. Its totient is φ = 13213288.

The previous prime is 13213283. The next prime is 13213297. The reversal of 13213289 is 98231231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13213225 + 64 = 3635^2 + 8^2 .

It is a cyclic number.

It is not a de Polignac number, because 13213289 - 2⁴ = 13213273 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (13213283) 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, 6606644 + 6606645.

It is an arithmetic number, because the mean of its divisors is an integer number (6606645).

Almost surely, 2^13213289 is an apocalyptic number.

It is an amenable number.

13213289 is a deficient number, since it is larger than the sum of its proper divisors (1).

13213289 is an equidigital number, since it uses as much as digits as its factorization.

13213289 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2592, while the sum is 29.

The square root of 13213289 is about 3635.0088032906. The cubic root of 13213289 is about 236.4124323633.

The spelling of 13213289 in words is "thirteen million, two hundred thirteen thousand, two hundred eighty-nine".