549126 has 16 divisors (see below), whose sum is σ = 1220400. Its totient is φ = 183024.

The previous prime is 549121. The next prime is 549139. The reversal of 549126 is 621945.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a self number, because there is not a number n which added to its sum of digits gives 549126.

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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5031 + ... + 5138.

It is an arithmetic number, because the mean of its divisors is an integer number (76275).

2⁵⁴⁹¹²⁶ is an apocalyptic number.

549126 is an abundant number, since it is smaller than the sum of its proper divisors (671274).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

549126 is a wasteful number, since it uses less digits than its factorization.

549126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10180 (or 10174 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

The square root of 549126 is about 741.0303637504. The cubic root of 549126 is about 81.8887048519. Note that the first 3 decimals are identical.

It can be divided in two parts, 54 and 9126, that multiplied together give a square (492804 = 702²).

The spelling of 549126 in words is "five hundred forty-nine thousand, one hundred twenty-six".