12000540 has 24 divisors (see below), whose sum is σ = 33601680. Its totient is φ = 3200128.

The previous prime is 12000523. The next prime is 12000551. The reversal of 12000540 is 4500021.

It is a Harshad number since it is a multiple of its sum of digits (12).

12000540 is a modest number, since divided by 540 gives 120 as remainder.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 99945 + ... + 100064.

It is an arithmetic number, because the mean of its divisors is an integer number (1400070).

Almost surely, 2^12000540 is an apocalyptic number.

12000540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000540 is an abundant number, since it is smaller than the sum of its proper divisors (21601140).

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

12000540 is a wasteful number, since it uses less digits than its factorization.

12000540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200021 (or 200019 counting only the distinct ones).

The product of its (nonzero) digits is 40, while the sum is 12.

The square root of 12000540 is about 3464.1795565473. The cubic root of 12000540 is about 228.9462826019.

Adding to 12000540 its reverse (4500021), we get a palindrome (16500561).

The spelling of 12000540 in words is "twelve million, five hundred forty", and thus it is an aban number.