320212533 has 4 divisors (see below), whose sum is σ = 426950048. Its totient is φ = 213475020.

The previous prime is 320212523. The next prime is 320212537. The reversal of 320212533 is 335212023.

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 not a de Polignac number, because 320212533 - 2⁶ = 320212469 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 (320212537) 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 in 3 ways as a sum of consecutive naturals, for example, 53368753 + ... + 53368758.

It is an arithmetic number, because the mean of its divisors is an integer number (106737512).

Almost surely, 2^320212533 is an apocalyptic number.

It is an amenable number.

320212533 is a deficient number, since it is larger than the sum of its proper divisors (106737515).

320212533 is a wasteful number, since it uses less digits than its factorization.

320212533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106737514.

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 320212533 is about 17894.4833119037. The cubic root of 320212533 is about 684.1417727911.

Adding to 320212533 its reverse (335212023), we get a palindrome (655424556).

The spelling of 320212533 in words is "three hundred twenty million, two hundred twelve thousand, five hundred thirty-three".