3243000209 has 2 divisors, whose sum is σ = 3243000210. Its totient is φ = 3243000208.

The previous prime is 3243000203. The next prime is 3243000289. The reversal of 3243000209 is 9020003423.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2694129025 + 548871184 = 51905^2 + 23428^2 .

It is a cyclic number.

It is not a de Polignac number, because 3243000209 - 2²⁰ = 3241951633 is a prime.

It is not a weakly prime, because it can be changed into another prime (3243000203) 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, 1621500104 + 1621500105.

It is an arithmetic number, because the mean of its divisors is an integer number (1621500105).

Almost surely, 2^3243000209 is an apocalyptic number.

It is an amenable number.

3243000209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3243000209 is an equidigital number, since it uses as much as digits as its factorization.

3243000209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 3243000209 is about 56947.3459346439. The cubic root of 3243000209 is about 1480.1838414494.

The spelling of 3243000209 in words is "three billion, two hundred forty-three million, two hundred nine", and thus it is an aban number.