531204 has 12 divisors (see below), whose sum is σ = 1239504. Its totient is φ = 177064.

The previous prime is 531203. The next prime is 531229. The reversal of 531204 is 402135.

It is a tau number, because it is divible by the number of its divisors (12).

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (531203) 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, 22122 + ... + 22145.

It is an arithmetic number, because the mean of its divisors is an integer number (103292).

2⁵³¹²⁰⁴ is an apocalyptic number.

It is an amenable number.

531204 is an abundant number, since it is smaller than the sum of its proper divisors (708300).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

531204 is a wasteful number, since it uses less digits than its factorization.

531204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44274 (or 44272 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 531204 is about 728.8374304329. The cubic root of 531204 is about 80.9879573622.

Adding to 531204 its reverse (402135), we get a palindrome (933339).

The spelling of 531204 in words is "five hundred thirty-one thousand, two hundred four".