549136 has 20 divisors (see below), whose sum is σ = 1216192. Its totient is φ = 235296.

The previous prime is 549121. The next prime is 549139. The reversal of 549136 is 631945.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is a d-powerful number, because it can be written as 5 + 4⁷ + 1 + 9 + 3¹² + 6⁴ .

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2340 + ... + 2563.

2⁵⁴⁹¹³⁶ is an apocalyptic number.

549136 is a gapful number since it is divisible by the number (56) formed by its first and last digit.

It is an amenable number.

549136 is an abundant number, since it is smaller than the sum of its proper divisors (667056).

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

549136 is a wasteful number, since it uses less digits than its factorization.

549136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4918 (or 4912 counting only the distinct ones).

The product of its digits is 3240, while the sum is 28.

The square root of 549136 is about 741.0371110815. The cubic root of 549136 is about 81.8892019340.

It can be divided in two parts, 5 and 49136, that added together give a triangular number (49141 = T₃₁₃).

The spelling of 549136 in words is "five hundred forty-nine thousand, one hundred thirty-six".