531233 has 4 divisors (see below), whose sum is σ = 562500. Its totient is φ = 499968.

The previous prime is 531229. The next prime is 531239. The reversal of 531233 is 332135.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 380689 + 150544 = 617^2 + 388^2 .

It is a cyclic number.

It is not a de Polignac number, because 531233 - 2² = 531229 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 31249 = 531233 / (5 + 3 + 1 + 2 + 3 + 3).

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (531239) 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, 15608 + ... + 15641.

It is an arithmetic number, because the mean of its divisors is an integer number (140625).

2⁵³¹²³³ is an apocalyptic number.

It is an amenable number.

531233 is a deficient number, since it is larger than the sum of its proper divisors (31267).

531233 is a wasteful number, since it uses less digits than its factorization.

531233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31266.

The product of its digits is 270, while the sum is 17.

The square root of 531233 is about 728.8573248586. The cubic root of 531233 is about 80.9894311262.

Adding to 531233 its reverse (332135), we get a palindrome (863368).

The spelling of 531233 in words is "five hundred thirty-one thousand, two hundred thirty-three".