549143 has 8 divisors (see below), whose sum is σ = 640800. Its totient is φ = 470400.

The previous prime is 549139. The next prime is 549149. The reversal of 549143 is 341945.

It is not a de Polignac number, because 549143 - 2² = 549139 is a prime.

It is a Duffinian 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 549143.

It is not an unprimeable number, because it can be changed into a prime (549149) 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, 458 + ... + 1143.

It is an arithmetic number, because the mean of its divisors is an integer number (80100).

2⁵⁴⁹¹⁴³ is an apocalyptic number.

549143 is a deficient number, since it is larger than the sum of its proper divisors (91657).

549143 is an equidigital number, since it uses as much as digits as its factorization.

549143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1608 counting only the distinct ones).

The product of its digits is 2160, while the sum is 26.

The square root of 549143 is about 741.0418341767. The cubic root of 549143 is about 81.8895498878.

The spelling of 549143 in words is "five hundred forty-nine thousand, one hundred forty-three".