12000549 has 32 divisors (see below), whose sum is σ = 18514944. Its totient is φ = 6842880.

The previous prime is 12000523. The next prime is 12000551. The reversal of 12000549 is 94500021.

It is not a de Polignac number, because 12000549 - 2⁷ = 12000421 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12000509) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73542 + ... + 73704.

It is an arithmetic number, because the mean of its divisors is an integer number (578592).

Almost surely, 2^12000549 is an apocalyptic number.

It is an amenable number.

12000549 is a deficient number, since it is larger than the sum of its proper divisors (6514395).

12000549 is a wasteful number, since it uses less digits than its factorization.

12000549 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 12000549 is about 3464.1808555559. The cubic root of 12000549 is about 228.9463398359.

The spelling of 12000549 in words is "twelve million, five hundred forty-nine", and thus it is an aban number.