478455163 has 2 divisors, whose sum is σ = 478455164. Its totient is φ = 478455162.

The previous prime is 478455149. The next prime is 478455181. The reversal of 478455163 is 361554874.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-478455163 is a prime.

It is not a weakly prime, because it can be changed into another prime (478455113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 239227581 + 239227582.

It is an arithmetic number, because the mean of its divisors is an integer number (239227582).

Almost surely, 2^478455163 is an apocalyptic number.

478455163 is a deficient number, since it is larger than the sum of its proper divisors (1).

478455163 is an equidigital number, since it uses as much as digits as its factorization.

478455163 is an odious number, because the sum of its binary digits is odd.

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

The square root of 478455163 is about 21873.6179677711. The cubic root of 478455163 is about 782.1326487694.

The spelling of 478455163 in words is "four hundred seventy-eight million, four hundred fifty-five thousand, one hundred sixty-three".