531211 has 4 divisors (see below), whose sum is σ = 532800. Its totient is φ = 529624.

The previous prime is 531203. The next prime is 531229. The reversal of 531211 is 112135.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 531211 - 2³ = 531203 is a prime.

It is a Duffinian number.

It is a zygodrome in base 3.

It is a junction number, because it is equal to n+sod(n) for n = 531191 and 531200.

It is not an unprimeable number, because it can be changed into a prime (531281) 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, 76 + ... + 1033.

It is an arithmetic number, because the mean of its divisors is an integer number (133200).

2⁵³¹²¹¹ is an apocalyptic number.

531211 is a deficient number, since it is larger than the sum of its proper divisors (1589).

531211 is a wasteful number, since it uses less digits than its factorization.

531211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588.

The product of its digits is 30, while the sum is 13.

The square root of 531211 is about 728.8422325854. The cubic root of 531211 is about 80.9883131033.

Adding to 531211 its reverse (112135), we get a palindrome (643346).

The spelling of 531211 in words is "five hundred thirty-one thousand, two hundred eleven".