325309 has 2 divisors, whose sum is σ = 325310. Its totient is φ = 325308.

The previous prime is 325307. The next prime is 325319. The reversal of 325309 is 903523.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 319225 + 6084 = 565^2 + 78^2 .

It is a cyclic number.

It is not a de Polignac number, because 325309 - 2¹ = 325307 is a prime.

Together with 325307, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 325309.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162654 + 162655.

It is an arithmetic number, because the mean of its divisors is an integer number (162655).

2³²⁵³⁰⁹ is an apocalyptic number.

It is an amenable number.

325309 is a deficient number, since it is larger than the sum of its proper divisors (1).

325309 is an equidigital number, since it uses as much as digits as its factorization.

325309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 810, while the sum is 22.

The square root of 325309 is about 570.3586590909. The cubic root of 325309 is about 68.7752260046.

The spelling of 325309 in words is "three hundred twenty-five thousand, three hundred nine".