531249 has 8 divisors (see below), whose sum is σ = 720192. Its totient is φ = 348240.

The previous prime is 531239. The next prime is 531253. The reversal of 531249 is 942135.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 531249 - 2⁷ = 531121 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a plaindrome in base 5.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (531229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1269 + ... + 1634.

It is an arithmetic number, because the mean of its divisors is an integer number (90024).

2⁵³¹²⁴⁹ is an apocalyptic number.

It is an amenable number.

531249 is a deficient number, since it is larger than the sum of its proper divisors (188943).

531249 is a wasteful number, since it uses less digits than its factorization.

531249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967.

The product of its digits is 1080, while the sum is 24.

The square root of 531249 is about 728.8683008610. The cubic root of 531249 is about 80.9902442145.

It can be divided in two parts, 531 and 249, that added together give a triangular number (780 = T₃₉).

The spelling of 531249 in words is "five hundred thirty-one thousand, two hundred forty-nine".