324144209 has 2 divisors, whose sum is σ = 324144210. Its totient is φ = 324144208.

The previous prime is 324144187. The next prime is 324144211. The reversal of 324144209 is 902441423.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 320302609 + 3841600 = 17897^2 + 1960^2 .

It is a cyclic number.

It is not a de Polignac number, because 324144209 - 2²⁸ = 55708753 is a prime.

Together with 324144211, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (324144269) 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, 162072104 + 162072105.

It is an arithmetic number, because the mean of its divisors is an integer number (162072105).

Almost surely, 2^324144209 is an apocalyptic number.

It is an amenable number.

324144209 is a deficient number, since it is larger than the sum of its proper divisors (1).

324144209 is an equidigital number, since it uses as much as digits as its factorization.

324144209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 29.

The square root of 324144209 is about 18004.0053599192. The cubic root of 324144209 is about 686.9304304769.

The spelling of 324144209 in words is "three hundred twenty-four million, one hundred forty-four thousand, two hundred nine".