323146409 has 2 divisors, whose sum is σ = 323146410. Its totient is φ = 323146408.

The previous prime is 323146393. The next prime is 323146441. The reversal of 323146409 is 904641323.

It is an a-pointer prime, because the next prime (323146441) can be obtained adding 323146409 to its sum of digits (32).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 298425625 + 24720784 = 17275^2 + 4972^2 .

It is a cyclic number.

It is not a de Polignac number, because 323146409 - 2⁴ = 323146393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (323146469) 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, 161573204 + 161573205.

It is an arithmetic number, because the mean of its divisors is an integer number (161573205).

Almost surely, 2^323146409 is an apocalyptic number.

It is an amenable number.

323146409 is a deficient number, since it is larger than the sum of its proper divisors (1).

323146409 is an equidigital number, since it uses as much as digits as its factorization.

323146409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 32.

The square root of 323146409 is about 17976.2735014797. The cubic root of 323146409 is about 686.2248559527.

The spelling of 323146409 in words is "three hundred twenty-three million, one hundred forty-six thousand, four hundred nine".