531316 has 12 divisors (see below), whose sum is σ = 978880. Its totient is φ = 251640.

The previous prime is 531299. The next prime is 531331. The reversal of 531316 is 613135.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a nialpdrome in base 9 and base 15.

It is a junction number, because it is equal to n+sod(n) for n = 531293 and 531302.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3420 + ... + 3571.

531316 is a Friedman number, since it can be written as (3^(1+1))^6-5^3, using all its digits and the basic arithmetic operations.

2⁵³¹³¹⁶ is an apocalyptic number.

It is an amenable number.

531316 is a deficient number, since it is larger than the sum of its proper divisors (447564).

531316 is a wasteful number, since it uses less digits than its factorization.

531316 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7014 (or 7012 counting only the distinct ones).

The product of its digits is 270, while the sum is 19.

The square root of 531316 is about 728.9142610760. The cubic root of 531316 is about 80.9936488441.

It can be divided in two parts, 5313 and 16, that added together give a square (5329 = 73²).

The spelling of 531316 in words is "five hundred thirty-one thousand, three hundred sixteen".