325421009 has 2 divisors, whose sum is σ = 325421010. Its totient is φ = 325421008.

The previous prime is 325420993. The next prime is 325421023. The reversal of 325421009 is 900124523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 307230784 + 18190225 = 17528^2 + 4265^2 .

It is a cyclic number.

It is not a de Polignac number, because 325421009 - 2⁴ = 325420993 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (325421039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162710504 + 162710505.

It is an arithmetic number, because the mean of its divisors is an integer number (162710505).

Almost surely, 2^325421009 is an apocalyptic number.

It is an amenable number.

325421009 is a deficient number, since it is larger than the sum of its proper divisors (1).

325421009 is an equidigital number, since it uses as much as digits as its factorization.

325421009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 325421009 is about 18039.4292869813. The cubic root of 325421009 is about 687.8311856242.

The spelling of 325421009 in words is "three hundred twenty-five million, four hundred twenty-one thousand, nine".