455719409 has 2 divisors, whose sum is σ = 455719410. Its totient is φ = 455719408.

The previous prime is 455719333. The next prime is 455719529. The reversal of 455719409 is 904917554.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 332953009 + 122766400 = 18247^2 + 11080^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455719409 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 455719409.

It is not a weakly prime, because it can be changed into another prime (455719609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227859704 + 227859705.

It is an arithmetic number, because the mean of its divisors is an integer number (227859705).

Almost surely, 2^455719409 is an apocalyptic number.

It is an amenable number.

455719409 is a deficient number, since it is larger than the sum of its proper divisors (1).

455719409 is an equidigital number, since it uses as much as digits as its factorization.

455719409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 226800, while the sum is 44.

The square root of 455719409 is about 21347.5855543431. The cubic root of 455719409 is about 769.5423203568.

The spelling of 455719409 in words is "four hundred fifty-five million, seven hundred nineteen thousand, four hundred nine".