12000067 has 4 divisors (see below), whose sum is σ = 12007240. Its totient is φ = 11992896.

The previous prime is 12000029. The next prime is 12000073. The reversal of 12000067 is 76000021.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12000067 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12000067.

It is not an unprimeable number, because it can be changed into a prime (12000017) 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 3 ways as a sum of consecutive naturals, for example, 403 + ... + 4915.

It is an arithmetic number, because the mean of its divisors is an integer number (3001810).

Almost surely, 2^12000067 is an apocalyptic number.

12000067 is a deficient number, since it is larger than the sum of its proper divisors (7173).

12000067 is an equidigital number, since it uses as much as digits as its factorization.

12000067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7172.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 12000067 is about 3464.1112857413. Note that the first 3 decimals coincide. The cubic root of 12000067 is about 228.9432745980.

Adding to 12000067 its reverse (76000021), we get a palindrome (88000088).

The spelling of 12000067 in words is "twelve million, sixty-seven", and thus it is an aban number and an uban number.