420585163 has 2 divisors, whose sum is σ = 420585164. Its totient is φ = 420585162.

The previous prime is 420585161. The next prime is 420585211. The reversal of 420585163 is 361585024.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 420585163 - 2¹ = 420585161 is a prime.

Together with 420585161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (420585161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 210292581 + 210292582.

It is an arithmetic number, because the mean of its divisors is an integer number (210292582).

Almost surely, 2^420585163 is an apocalyptic number.

420585163 is a deficient number, since it is larger than the sum of its proper divisors (1).

420585163 is an equidigital number, since it uses as much as digits as its factorization.

420585163 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 420585163 is about 20508.1730780682. The cubic root of 420585163 is about 749.2348718521.

The spelling of 420585163 in words is "four hundred twenty million, five hundred eighty-five thousand, one hundred sixty-three".