549231 has 16 divisors (see below), whose sum is σ = 777600. Its totient is φ = 344288.

The previous prime is 549229. The next prime is 549247. The reversal of 549231 is 132945.

549231 = T₄₃ + T₄₄ + ... + T₁₄₉.

549231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 549231 - 2¹ = 549229 is a prime.

It is a super-2 number, since 2×549231² = 603309382722, which contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 5080 + ... + 5186.

It is an arithmetic number, because the mean of its divisors is an integer number (48600).

2⁵⁴⁹²³¹ is an apocalyptic number.

549231 is a deficient number, since it is larger than the sum of its proper divisors (228369).

549231 is a wasteful number, since it uses less digits than its factorization.

549231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198.

The product of its digits is 1080, while the sum is 24.

The square root of 549231 is about 741.1012076633. The cubic root of 549231 is about 81.8939239128.

It can be divided in two parts, 549 and 231, that added together give a triangular number (780 = T₃₉).

The spelling of 549231 in words is "five hundred forty-nine thousand, two hundred thirty-one".