12067971 has 4 divisors (see below), whose sum is σ = 16090632. Its totient is φ = 8045312.

The previous prime is 12067933. The next prime is 12068009. The reversal of 12067971 is 17976021.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (12067933) and next prime (12068009).

It is a cyclic number.

It is not a de Polignac number, because 12067971 - 2⁷ = 12067843 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12067271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2011326 + ... + 2011331.

It is an arithmetic number, because the mean of its divisors is an integer number (4022658).

Almost surely, 2^12067971 is an apocalyptic number.

12067971 is a deficient number, since it is larger than the sum of its proper divisors (4022661).

12067971 is an equidigital number, since it uses as much as digits as its factorization.

12067971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4022660.

The product of its (nonzero) digits is 5292, while the sum is 33.

The square root of 12067971 is about 3473.8985304698. The cubic root of 12067971 is about 229.3742980969.

The spelling of 12067971 in words is "twelve million, sixty-seven thousand, nine hundred seventy-one".