420893133 has 4 divisors (see below), whose sum is σ = 561190848. Its totient is φ = 280595420.

The previous prime is 420893071. The next prime is 420893147. The reversal of 420893133 is 331398024.

It is a happy number.

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 not a de Polignac number, because 420893133 - 2⁸ = 420892877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 420893094 and 420893103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (420893173) 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, 70148853 + ... + 70148858.

It is an arithmetic number, because the mean of its divisors is an integer number (140297712).

Almost surely, 2^420893133 is an apocalyptic number.

It is an amenable number.

420893133 is a deficient number, since it is larger than the sum of its proper divisors (140297715).

420893133 is a wasteful number, since it uses less digits than its factorization.

420893133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140297714.

The product of its (nonzero) digits is 15552, while the sum is 33.

The square root of 420893133 is about 20515.6801739547. The cubic root of 420893133 is about 749.4177009096.

The spelling of 420893133 in words is "four hundred twenty million, eight hundred ninety-three thousand, one hundred thirty-three".