454533809 has 2 divisors, whose sum is σ = 454533810. Its totient is φ = 454533808.

The previous prime is 454533803. The next prime is 454533823. The reversal of 454533809 is 908335454.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 453477025 + 1056784 = 21295^2 + 1028^2 .

It is a cyclic number.

It is not a de Polignac number, because 454533809 - 2²⁰ = 453485233 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 (454533803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227266904 + 227266905.

It is an arithmetic number, because the mean of its divisors is an integer number (227266905).

Almost surely, 2^454533809 is an apocalyptic number.

It is an amenable number.

454533809 is a deficient number, since it is larger than the sum of its proper divisors (1).

454533809 is an equidigital number, since it uses as much as digits as its factorization.

454533809 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 41.

The square root of 454533809 is about 21319.7985215621. The cubic root of 454533809 is about 768.8743934779.

The spelling of 454533809 in words is "four hundred fifty-four million, five hundred thirty-three thousand, eight hundred nine".