549133 has 8 divisors (see below), whose sum is σ = 603288. Its totient is φ = 496704.

The previous prime is 549121. The next prime is 549139. The reversal of 549133 is 331945.

It can be written as a sum of positive squares in 4 ways, for example, as 49284 + 499849 = 222^2 + 707^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-549133 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 549098 and 549107.

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 (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291 + ... + 1087.

It is an arithmetic number, because the mean of its divisors is an integer number (75411).

2⁵⁴⁹¹³³ is an apocalyptic number.

549133 is a gapful number since it is divisible by the number (53) formed by its first and last digit.

It is an amenable number.

549133 is a deficient number, since it is larger than the sum of its proper divisors (54155).

549133 is a wasteful number, since it uses less digits than its factorization.

549133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 863.

The product of its digits is 1620, while the sum is 25.

The square root of 549133 is about 741.0350868886. The cubic root of 549133 is about 81.8890528100.

The spelling of 549133 in words is "five hundred forty-nine thousand, one hundred thirty-three".