323225209 has 2 divisors, whose sum is σ = 323225210. Its totient is φ = 323225208.

The previous prime is 323225197. The next prime is 323225269. The reversal of 323225209 is 902522323.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 243516025 + 79709184 = 15605^2 + 8928^2 .

It is a cyclic number.

It is not a de Polignac number, because 323225209 - 2⁹ = 323224697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (323225269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161612604 + 161612605.

It is an arithmetic number, because the mean of its divisors is an integer number (161612605).

Almost surely, 2^323225209 is an apocalyptic number.

It is an amenable number.

323225209 is a deficient number, since it is larger than the sum of its proper divisors (1).

323225209 is an equidigital number, since it uses as much as digits as its factorization.

323225209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 323225209 is about 17978.4651458349. The cubic root of 323225209 is about 686.2806305926.

It can be divided in two parts, 3232 and 25209, that added together give a triangular number (28441 = T₂₃₈).

The spelling of 323225209 in words is "three hundred twenty-three million, two hundred twenty-five thousand, two hundred nine".