12921067 has 4 divisors (see below), whose sum is σ = 12978216. Its totient is φ = 12863920.

The previous prime is 12921061. The next prime is 12921089. The reversal of 12921067 is 76012921.

It is a happy number.

12921067 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76012921 = 3517 ⋅21613.

It is a cyclic number.

It is not a de Polignac number, because 12921067 - 2¹¹ = 12919019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12921061) 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, 28234 + ... + 28687.

It is an arithmetic number, because the mean of its divisors is an integer number (3244554).

Almost surely, 2^12921067 is an apocalyptic number.

12921067 is a deficient number, since it is larger than the sum of its proper divisors (57149).

12921067 is an equidigital number, since it uses as much as digits as its factorization.

12921067 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57148.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 12921067 is about 3594.5885717283. The cubic root of 12921067 is about 234.6566102874.

Adding to 12921067 its reverse (76012921), we get a palindrome (88933988).

The spelling of 12921067 in words is "twelve million, nine hundred twenty-one thousand, sixty-seven".