531317 has 4 divisors (see below), whose sum is σ = 532896. Its totient is φ = 529740.

The previous prime is 531299. The next prime is 531331. The reversal of 531317 is 713135.

It is a happy number.

531317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 531317 - 2⁶ = 531253 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 9 and base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 531317.

It is not an unprimeable number, because it can be changed into a prime (531337) 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, 59 + ... + 1032.

It is an arithmetic number, because the mean of its divisors is an integer number (133224).

2⁵³¹³¹⁷ is an apocalyptic number.

It is an amenable number.

531317 is a deficient number, since it is larger than the sum of its proper divisors (1579).

531317 is a wasteful number, since it uses less digits than its factorization.

531317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1578.

The product of its digits is 315, while the sum is 20.

The square root of 531317 is about 728.9149470274. The cubic root of 531317 is about 80.9936996573.

It can be divided in two parts, 531 and 317, that added together give a palindrome (848).

The spelling of 531317 in words is "five hundred thirty-one thousand, three hundred seventeen".