230533 has 4 divisors (see below), whose sum is σ = 231660. Its totient is φ = 229408.

The previous prime is 230507. The next prime is 230539. The reversal of 230533 is 335032.

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 113569 + 116964 = 337^2 + 342^2 .

It is a cyclic number.

It is not a de Polignac number, because 230533 - 2⁵ = 230501 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (230539) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 160 + ... + 697.

It is an arithmetic number, because the mean of its divisors is an integer number (57915).

2²³⁰⁵³³ is an apocalyptic number.

It is an amenable number.

230533 is a deficient number, since it is larger than the sum of its proper divisors (1127).

230533 is an equidigital number, since it uses as much as digits as its factorization.

230533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1126.

The product of its (nonzero) digits is 270, while the sum is 16.

The square root of 230533 is about 480.1385216789. The cubic root of 230533 is about 61.3165485208.

Adding to 230533 its reverse (335032), we get a palindrome (565565).

The spelling of 230533 in words is "two hundred thirty thousand, five hundred thirty-three".