549219 has 24 divisors (see below), whose sum is σ = 861840. Its totient is φ = 309760.

The previous prime is 549203. The next prime is 549221. The reversal of 549219 is 912945.

It is a happy number.

Together with 312620 it forms a betrothed pair.

It is not a de Polignac number, because 549219 - 2⁴ = 549203 is a prime.

It is a super-2 number, since 2×549219² = 603283019922, which contains 22 as substring.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

Its product of digits (3240) is a multiple of the sum of its prime divisors (120).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549219.

It is not an unprimeable number, because it can be changed into a prime (549229) 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, 6127 + ... + 6215.

It is an arithmetic number, because the mean of its divisors is an integer number (35910).

2⁵⁴⁹²¹⁹ is an apocalyptic number.

549219 is a deficient number, since it is larger than the sum of its proper divisors (312621).

549219 is a wasteful number, since it uses less digits than its factorization.

549219 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131 (or 120 counting only the distinct ones).

The product of its digits is 3240, while the sum is 30.

The square root of 549219 is about 741.0931115589. The cubic root of 549219 is about 81.8933274823.

The spelling of 549219 in words is "five hundred forty-nine thousand, two hundred nineteen".