445454089 has 2 divisors, whose sum is σ = 445454090. Its totient is φ = 445454088.

The previous prime is 445454081. The next prime is 445454099. The reversal of 445454089 is 980454544.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 282508864 + 162945225 = 16808^2 + 12765^2 .

It is a cyclic number.

It is not a de Polignac number, because 445454089 - 2³ = 445454081 is a prime.

It is not a weakly prime, because it can be changed into another prime (445454081) 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, 222727044 + 222727045.

It is an arithmetic number, because the mean of its divisors is an integer number (222727045).

Almost surely, 2^445454089 is an apocalyptic number.

It is an amenable number.

445454089 is a deficient number, since it is larger than the sum of its proper divisors (1).

445454089 is an equidigital number, since it uses as much as digits as its factorization.

445454089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 43.

The square root of 445454089 is about 21105.7833069517. The cubic root of 445454089 is about 763.7202685837.

The spelling of 445454089 in words is "four hundred forty-five million, four hundred fifty-four thousand, eighty-nine".