531324 has 18 divisors (see below), whose sum is σ = 1343160. Its totient is φ = 177096.

The previous prime is 531299. The next prime is 531331. The reversal of 531324 is 423135.

531324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nialpdrome in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 531297 and 531306.

It is a congruent number.

It is an unprimeable number.

531324 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7344 + ... + 7415.

It is an arithmetic number, because the mean of its divisors is an integer number (74620).

2⁵³¹³²⁴ is an apocalyptic number.

It is an amenable number.

531324 is an abundant number, since it is smaller than the sum of its proper divisors (811836).

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

531324 is a wasteful number, since it uses less digits than its factorization.

531324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14769 (or 14764 counting only the distinct ones).

The product of its digits is 360, while the sum is 18.

The square root of 531324 is about 728.9197486692. The cubic root of 531324 is about 80.9940553479.

Adding to 531324 its reverse (423135), we get a palindrome (954459).

It can be divided in two parts, 5 and 31324, that added together give a square (31329 = 177²).

The spelling of 531324 in words is "five hundred thirty-one thousand, three hundred twenty-four".