233213 has 4 divisors (see below), whose sum is σ = 240768. Its totient is φ = 225660.

The previous prime is 233201. The next prime is 233221. The reversal of 233213 is 312332.

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 233213 - 2¹⁰ = 232189 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 233213.

It is not an unprimeable number, because it can be changed into a prime (233293) 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, 3731 + ... + 3792.

It is an arithmetic number, because the mean of its divisors is an integer number (60192).

2²³³²¹³ is an apocalyptic number.

It is an amenable number.

233213 is a deficient number, since it is larger than the sum of its proper divisors (7555).

233213 is an equidigital number, since it uses as much as digits as its factorization.

233213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7554.

The product of its digits is 108, while the sum is 14.

The square root of 233213 is about 482.9213186431. The cubic root of 233213 is about 61.5532400804.

Adding to 233213 its reverse (312332), we get a palindrome (545545).

The spelling of 233213 in words is "two hundred thirty-three thousand, two hundred thirteen".