420584875133 has 4 divisors (see below), whose sum is σ = 422389960668. Its totient is φ = 418779789600.

The previous prime is 420584875111. The next prime is 420584875153. The reversal of 420584875133 is 331578485024.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 203836899289 + 216747975844 = 451483^2 + 465562^2 .

It is a cyclic number.

It is not a de Polignac number, because 420584875133 - 2⁸ = 420584874877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420584875103) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 902542418 + ... + 902542883.

It is an arithmetic number, because the mean of its divisors is an integer number (105597490167).

Almost surely, 2^420584875133 is an apocalyptic number.

It is an amenable number.

420584875133 is a deficient number, since it is larger than the sum of its proper divisors (1805085535).

420584875133 is a wasteful number, since it uses less digits than its factorization.

420584875133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1805085534.

The product of its (nonzero) digits is 3225600, while the sum is 50.

The spelling of 420584875133 in words is "four hundred twenty billion, five hundred eighty-four million, eight hundred seventy-five thousand, one hundred thirty-three".