420955163 has 2 divisors, whose sum is σ = 420955164. Its totient is φ = 420955162.

The previous prime is 420955133. The next prime is 420955211. The reversal of 420955163 is 361559024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420955163 - 2⁶ = 420955099 is a prime.

It is not a weakly prime, because it can be changed into another prime (420955123) 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, 210477581 + 210477582.

It is an arithmetic number, because the mean of its divisors is an integer number (210477582).

Almost surely, 2^420955163 is an apocalyptic number.

420955163 is a deficient number, since it is larger than the sum of its proper divisors (1).

420955163 is an equidigital number, since it uses as much as digits as its factorization.

420955163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32400, while the sum is 35.

The square root of 420955163 is about 20517.1918887551. The cubic root of 420955163 is about 749.4545147647.

The spelling of 420955163 in words is "four hundred twenty million, nine hundred fifty-five thousand, one hundred sixty-three".