549147 has 8 divisors (see below), whose sum is σ = 737344. Its totient is φ = 363528.

The previous prime is 549139. The next prime is 549149. The reversal of 549147 is 741945.

It is a happy number.

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

It is not a de Polignac number, because 549147 - 2³ = 549139 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 549147.

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, 73 + ... + 1050.

It is an arithmetic number, because the mean of its divisors is an integer number (92168).

2⁵⁴⁹¹⁴⁷ is an apocalyptic number.

549147 is a deficient number, since it is larger than the sum of its proper divisors (188197).

549147 is a wasteful number, since it uses less digits than its factorization.

549147 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1289.

The product of its digits is 5040, while the sum is 30.

The square root of 549147 is about 741.0445330748. The cubic root of 549147 is about 81.8897487173.

It can be divided in two parts, 549 and 147, that added together give a palindrome (696).

The spelling of 549147 in words is "five hundred forty-nine thousand, one hundred forty-seven".