549012144 has 120 divisors (see below), whose sum is σ = 1586674240. Its totient is φ = 163095552.

The previous prime is 549012133. The next prime is 549012151. The reversal of 549012144 is 441210945.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262527 + ... + 264609.

Almost surely, 2^549012144 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 549012144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (793337120).

549012144 is an abundant number, since it is smaller than the sum of its proper divisors (1037662096).

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

549012144 is a wasteful number, since it uses less digits than its factorization.

549012144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147 (or 2124 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 30.

The square root of 549012144 is about 23431.0081729319. The cubic root of 549012144 is about 818.8304484865.

The spelling of 549012144 in words is "five hundred forty-nine million, twelve thousand, one hundred forty-four".