420161013 has 10 divisors (see below), whose sum is σ = 627648054. Its totient is φ = 280107288.

The previous prime is 420160963. The next prime is 420161017. The reversal of 420161013 is 310161024.

It is a happy number.

420161013 is a `hidden beast` number, since 42 + 0 + 1 + 610 + 13 = 666.

It can be written as a sum of positive squares in only one way, i.e., 303909489 + 116251524 = 17433^2 + 10782^2 .

It is not a de Polignac number, because 420161013 - 2⁹ = 420160501 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420161017) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2593506 + ... + 2593667.

Almost surely, 2^420161013 is an apocalyptic number.

It is an amenable number.

420161013 is a deficient number, since it is larger than the sum of its proper divisors (207487041).

420161013 is an equidigital number, since it uses as much as digits as its factorization.

420161013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5187185 (or 5187176 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 420161013 is about 20497.8294704586. The cubic root of 420161013 is about 748.9829253691.

The spelling of 420161013 in words is "four hundred twenty million, one hundred sixty-one thousand, thirteen".