420310133 has 4 divisors (see below), whose sum is σ = 420353388. Its totient is φ = 420266880.

The previous prime is 420310127. The next prime is 420310141. The reversal of 420310133 is 331013024.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 406344964 + 13965169 = 20158^2 + 3737^2 .

It is a cyclic number.

It is not a de Polignac number, because 420310133 - 2⁴ = 420310117 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 (420310103) 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, 485 + ... + 28997.

It is an arithmetic number, because the mean of its divisors is an integer number (105088347).

Almost surely, 2^420310133 is an apocalyptic number.

It is an amenable number.

420310133 is a deficient number, since it is larger than the sum of its proper divisors (43255).

420310133 is a wasteful number, since it uses less digits than its factorization.

420310133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43254.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 420310133 is about 20501.4666060748. The cubic root of 420310133 is about 749.0715224543.

Adding to 420310133 its reverse (331013024), we get a palindrome (751323157).

The spelling of 420310133 in words is "four hundred twenty million, three hundred ten thousand, one hundred thirty-three".