455127809 has 2 divisors, whose sum is σ = 455127810. Its totient is φ = 455127808.

The previous prime is 455127707. The next prime is 455127823. The reversal of 455127809 is 908721554.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 322992784 + 132135025 = 17972^2 + 11495^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-455127809 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (455127889) 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, 227563904 + 227563905.

It is an arithmetic number, because the mean of its divisors is an integer number (227563905).

Almost surely, 2^455127809 is an apocalyptic number.

It is an amenable number.

455127809 is a deficient number, since it is larger than the sum of its proper divisors (1).

455127809 is an equidigital number, since it uses as much as digits as its factorization.

455127809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 100800, while the sum is 41.

The square root of 455127809 is about 21333.7246865145. The cubic root of 455127809 is about 769.2091779511.

The spelling of 455127809 in words is "four hundred fifty-five million, one hundred twenty-seven thousand, eight hundred nine".