420164201 has 4 divisors (see below), whose sum is σ = 420843600. Its totient is φ = 419484804.

The previous prime is 420164189. The next prime is 420164203. The reversal of 420164201 is 102461024.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-420164201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (420164203) 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 in 3 ways as a sum of consecutive naturals, for example, 338771 + ... + 340008.

It is an arithmetic number, because the mean of its divisors is an integer number (105210900).

Almost surely, 2^420164201 is an apocalyptic number.

It is an amenable number.

420164201 is a deficient number, since it is larger than the sum of its proper divisors (679399).

420164201 is an equidigital number, since it uses as much as digits as its factorization.

420164201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 679398.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 420164201 is about 20497.9072346423. The cubic root of 420164201 is about 748.9848196837.

The spelling of 420164201 in words is "four hundred twenty million, one hundred sixty-four thousand, two hundred one".