322394561 has 2 divisors, whose sum is σ = 322394562. Its totient is φ = 322394560.

The previous prime is 322394557. The next prime is 322394587. The reversal of 322394561 is 165493223.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 311734336 + 10660225 = 17656^2 + 3265^2 .

It is a cyclic number.

It is not a de Polignac number, because 322394561 - 2² = 322394557 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (322394861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161197280 + 161197281.

It is an arithmetic number, because the mean of its divisors is an integer number (161197281).

Almost surely, 2^322394561 is an apocalyptic number.

It is an amenable number.

322394561 is a deficient number, since it is larger than the sum of its proper divisors (1).

322394561 is an equidigital number, since it uses as much as digits as its factorization.

322394561 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 35.

The square root of 322394561 is about 17955.3490915660. The cubic root of 322394561 is about 685.6922414024.

The spelling of 322394561 in words is "three hundred twenty-two million, three hundred ninety-four thousand, five hundred sixty-one".