549171 has 24 divisors (see below), whose sum is σ = 948480. Its totient is φ = 299376.

The previous prime is 549169. The next prime is 549193. The reversal of 549171 is 171945.

It is not a de Polignac number, because 549171 - 2¹ = 549169 is a prime.

It is a plaindrome in base 11.

It is not an unprimeable number, because it can be changed into a prime (549121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1260 + ... + 1638.

It is an arithmetic number, because the mean of its divisors is an integer number (39520).

2⁵⁴⁹¹⁷¹ is an apocalyptic number.

549171 is a deficient number, since it is larger than the sum of its proper divisors (399309).

549171 is a wasteful number, since it uses less digits than its factorization.

549171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415 (or 412 counting only the distinct ones).

The product of its digits is 1260, while the sum is 27.

The square root of 549171 is about 741.0607262566. The cubic root of 549171 is about 81.8909416737.

The spelling of 549171 in words is "five hundred forty-nine thousand, one hundred seventy-one".