549127 has 4 divisors (see below), whose sum is σ = 550800. Its totient is φ = 547456.

The previous prime is 549121. The next prime is 549139. The reversal of 549127 is 721945.

It is a happy number.

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 549127 - 2¹⁵ = 516359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 549095 and 549104.

It is a congruent number.

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

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 163 + ... + 1060.

It is an arithmetic number, because the mean of its divisors is an integer number (137700).

2⁵⁴⁹¹²⁷ is an apocalyptic number.

549127 is a deficient number, since it is larger than the sum of its proper divisors (1673).

549127 is a wasteful number, since it uses less digits than its factorization.

549127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1672.

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

The square root of 549127 is about 741.0310384862. The cubic root of 549127 is about 81.8887545604. Note that the first 3 decimals are identical.

It can be divided in two parts, 549 and 127, that added together give a palindrome (676).

The spelling of 549127 in words is "five hundred forty-nine thousand, one hundred twenty-seven".