549141 has 4 divisors (see below), whose sum is σ = 732192. Its totient is φ = 366092.

The previous prime is 549139. The next prime is 549149. The reversal of 549141 is 141945.

549141 = 243² + 244² + ... + 251².

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 549141 - 2¹ = 549139 is a prime.

It is a D-number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549141.

It is not an unprimeable number, because it can be changed into a prime (549149) 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, 91521 + ... + 91526.

It is an arithmetic number, because the mean of its divisors is an integer number (183048).

2⁵⁴⁹¹⁴¹ is an apocalyptic number.

It is an amenable number.

549141 is a deficient number, since it is larger than the sum of its proper divisors (183051).

549141 is a wasteful number, since it uses less digits than its factorization.

549141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183050.

The product of its digits is 720, while the sum is 24.

The square root of 549141 is about 741.0404847240. The cubic root of 549141 is about 81.8894504728.

The spelling of 549141 in words is "five hundred forty-nine thousand, one hundred forty-one".