549271 has 4 divisors (see below), whose sum is σ = 578200. Its totient is φ = 520344.

The previous prime is 549259. The next prime is 549281. The reversal of 549271 is 172945.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 172945 = 5 ⋅34589.

It is a cyclic number.

It is not a de Polignac number, because 549271 - 2¹¹ = 547223 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 (549221) 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, 14436 + ... + 14473.

It is an arithmetic number, because the mean of its divisors is an integer number (144550).

2⁵⁴⁹²⁷¹ is an apocalyptic number.

549271 is a deficient number, since it is larger than the sum of its proper divisors (28929).

549271 is a wasteful number, since it uses less digits than its factorization.

549271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28928.

The product of its digits is 2520, while the sum is 28.

The square root of 549271 is about 741.1281940393. The cubic root of 549271 is about 81.8959119514.

It can be divided in two parts, 549 and 271, that added together give a triangular number (820 = T₄₀).

The spelling of 549271 in words is "five hundred forty-nine thousand, two hundred seventy-one".