420361001 has 2 divisors, whose sum is σ = 420361002. Its totient is φ = 420361000.

The previous prime is 420360977. The next prime is 420361027. The reversal of 420361001 is 100163024.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 402042601 + 18318400 = 20051^2 + 4280^2 .

It is a cyclic number.

It is not a de Polignac number, because 420361001 - 2²² = 416166697 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (420363001) 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, 210180500 + 210180501.

It is an arithmetic number, because the mean of its divisors is an integer number (210180501).

Almost surely, 2^420361001 is an apocalyptic number.

It is an amenable number.

420361001 is a deficient number, since it is larger than the sum of its proper divisors (1).

420361001 is an equidigital number, since it uses as much as digits as its factorization.

420361001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 420361001 is about 20502.7071627139. The cubic root of 420361001 is about 749.1017400089.

The spelling of 420361001 in words is "four hundred twenty million, three hundred sixty-one thousand, one".