12681267 has 4 divisors (see below), whose sum is σ = 16908360. Its totient is φ = 8454176.

The previous prime is 12681247. The next prime is 12681289. The reversal of 12681267 is 76218621.

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 12681267 - 2⁶ = 12681203 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (12681217) 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, 2113542 + ... + 2113547.

It is an arithmetic number, because the mean of its divisors is an integer number (4227090).

Almost surely, 2^12681267 is an apocalyptic number.

12681267 is a deficient number, since it is larger than the sum of its proper divisors (4227093).

12681267 is an equidigital number, since it uses as much as digits as its factorization.

12681267 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4227092.

The product of its digits is 8064, while the sum is 33.

The square root of 12681267 is about 3561.0766630332. The cubic root of 12681267 is about 233.1958848094.

Adding to 12681267 its reverse (76218621), we get a palindrome (88899888).

The spelling of 12681267 in words is "twelve million, six hundred eighty-one thousand, two hundred sixty-seven".