213271 has 4 divisors (see below), whose sum is σ = 214200. Its totient is φ = 212344.

The previous prime is 213263. The next prime is 213281. The reversal of 213271 is 172312.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 213271 - 2³ = 213263 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213281) 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, 165 + ... + 673.

It is an arithmetic number, because the mean of its divisors is an integer number (53550).

2²¹³²⁷¹ is an apocalyptic number.

213271 is a deficient number, since it is larger than the sum of its proper divisors (929).

213271 is an equidigital number, since it uses as much as digits as its factorization.

213271 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 928.

The product of its digits is 84, while the sum is 16.

The square root of 213271 is about 461.8127326092. The cubic root of 213271 is about 59.7462431185.

Adding to 213271 its reverse (172312), we get a palindrome (385583).

It can be divided in two parts, 213 and 271, that added together give a palindrome (484).

The spelling of 213271 in words is "two hundred thirteen thousand, two hundred seventy-one".