12971067 has 4 divisors (see below), whose sum is σ = 17294760. Its totient is φ = 8647376.

The previous prime is 12971041. The next prime is 12971069. The reversal of 12971067 is 76017921.

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

It is a cyclic number.

It is not a de Polignac number, because 12971067 - 2¹⁰ = 12970043 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12971069) 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, 2161842 + ... + 2161847.

It is an arithmetic number, because the mean of its divisors is an integer number (4323690).

Almost surely, 2^12971067 is an apocalyptic number.

12971067 is a deficient number, since it is larger than the sum of its proper divisors (4323693).

12971067 is an equidigital number, since it uses as much as digits as its factorization.

12971067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4323692.

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

The square root of 12971067 is about 3601.5367553310. The cubic root of 12971067 is about 234.9589003120.

Adding to 12971067 its reverse (76017921), we get a palindrome (88988988).

The spelling of 12971067 in words is "twelve million, nine hundred seventy-one thousand, sixty-seven".