531271 has 4 divisors (see below), whose sum is σ = 572152. Its totient is φ = 490392.

The previous prime is 531263. The next prime is 531281. The reversal of 531271 is 172135.

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 531271 - 2³ = 531263 is a prime.

It is a Duffinian number.

531271 is a lucky number.

It is a nialpdrome in base 15.

It is a congruent number.

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, 20421 + ... + 20446.

It is an arithmetic number, because the mean of its divisors is an integer number (143038).

2⁵³¹²⁷¹ is an apocalyptic number.

531271 is a deficient number, since it is larger than the sum of its proper divisors (40881).

531271 is a wasteful number, since it uses less digits than its factorization.

531271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40880.

The product of its digits is 210, while the sum is 19.

The square root of 531271 is about 728.8833925945. The cubic root of 531271 is about 80.9913621841.

The spelling of 531271 in words is "five hundred thirty-one thousand, two hundred seventy-one".