322125409 has 2 divisors, whose sum is σ = 322125410. Its totient is φ = 322125408.

The previous prime is 322125389. The next prime is 322125437. The reversal of 322125409 is 904521223.

It is an a-pointer prime, because the next prime (322125437) can be obtained adding 322125409 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 318515409 + 3610000 = 17847^2 + 1900^2 .

It is a cyclic number.

It is not a de Polignac number, because 322125409 - 2¹³ = 322117217 is a prime.

It is not a weakly prime, because it can be changed into another prime (322125439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 161062704 + 161062705.

It is an arithmetic number, because the mean of its divisors is an integer number (161062705).

Almost surely, 2^322125409 is an apocalyptic number.

It is an amenable number.

322125409 is a deficient number, since it is larger than the sum of its proper divisors (1).

322125409 is an equidigital number, since it uses as much as digits as its factorization.

322125409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 322125409 is about 17947.8524899220. The cubic root of 322125409 is about 685.5013709151.

The spelling of 322125409 in words is "three hundred twenty-two million, one hundred twenty-five thousand, four hundred nine".