13283209 has 2 divisors, whose sum is σ = 13283210. Its totient is φ = 13283208.

The previous prime is 13283203. The next prime is 13283227. The reversal of 13283209 is 90238231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10890000 + 2393209 = 3300^2 + 1547^2 .

It is a cyclic number.

It is not a de Polignac number, because 13283209 - 2⁹ = 13282697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (13283203) 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, 6641604 + 6641605.

It is an arithmetic number, because the mean of its divisors is an integer number (6641605).

Almost surely, 2^13283209 is an apocalyptic number.

It is an amenable number.

13283209 is a deficient number, since it is larger than the sum of its proper divisors (1).

13283209 is an equidigital number, since it uses as much as digits as its factorization.

13283209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 28.

The square root of 13283209 is about 3644.6136969506. The cubic root of 13283209 is about 236.8287023223.

The spelling of 13283209 in words is "thirteen million, two hundred eighty-three thousand, two hundred nine".