12066981 has 8 divisors (see below), whose sum is σ = 16133280. Its totient is φ = 8022672.

The previous prime is 12066979. The next prime is 12067001. The reversal of 12066981 is 18966021.

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

It is not a de Polignac number, because 12066981 - 2¹ = 12066979 is a prime.

It is a super-2 number, since 2×12066981² = 291224060908722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12066911) 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, 4170 + ... + 6443.

It is an arithmetic number, because the mean of its divisors is an integer number (2016660).

Almost surely, 2^12066981 is an apocalyptic number.

It is an amenable number.

12066981 is a deficient number, since it is larger than the sum of its proper divisors (4066299).

12066981 is a wasteful number, since it uses less digits than its factorization.

12066981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10995.

The product of its (nonzero) digits is 5184, while the sum is 33.

The square root of 12066981 is about 3473.7560363388. The cubic root of 12066981 is about 229.3680256599.

The spelling of 12066981 in words is "twelve million, sixty-six thousand, nine hundred eighty-one".