455309 has 2 divisors, whose sum is σ = 455310. Its totient is φ = 455308.

The previous prime is 455291. The next prime is 455317. The reversal of 455309 is 903554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 426409 + 28900 = 653^2 + 170^2 .

It is a cyclic number.

It is not a de Polignac number, because 455309 - 2⁸ = 455053 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (455339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227654 + 227655.

It is an arithmetic number, because the mean of its divisors is an integer number (227655).

2⁴⁵⁵³⁰⁹ is an apocalyptic number.

It is an amenable number.

455309 is a deficient number, since it is larger than the sum of its proper divisors (1).

455309 is an equidigital number, since it uses as much as digits as its factorization.

455309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 455309 is about 674.7658853262. The cubic root of 455309 is about 76.9311241068.

The spelling of 455309 in words is "four hundred fifty-five thousand, three hundred nine".