445857163 has 2 divisors, whose sum is σ = 445857164. Its totient is φ = 445857162.

The previous prime is 445857149. The next prime is 445857179. The reversal of 445857163 is 361758544.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 445857163 - 2²⁵ = 412302731 is a prime.

It is not a weakly prime, because it can be changed into another prime (445857143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 222928581 + 222928582.

It is an arithmetic number, because the mean of its divisors is an integer number (222928582).

Almost surely, 2^445857163 is an apocalyptic number.

445857163 is a deficient number, since it is larger than the sum of its proper divisors (1).

445857163 is an equidigital number, since it uses as much as digits as its factorization.

445857163 is an evil number, because the sum of its binary digits is even.

The product of its digits is 403200, while the sum is 43.

The square root of 445857163 is about 21115.3300471482. The cubic root of 445857163 is about 763.9505526827.

The spelling of 445857163 in words is "four hundred forty-five million, eight hundred fifty-seven thousand, one hundred sixty-three".