12791227 has 2 divisors, whose sum is σ = 12791228. Its totient is φ = 12791226.

The previous prime is 12791201. The next prime is 12791231. The reversal of 12791227 is 72219721.

It is a happy number.

12791227 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12791227 - 2¹⁹ = 12266939 is a prime.

It is not a weakly prime, because it can be changed into another prime (12791257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6395613 + 6395614.

It is an arithmetic number, because the mean of its divisors is an integer number (6395614).

Almost surely, 2^12791227 is an apocalyptic number.

12791227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12791227 is an equidigital number, since it uses as much as digits as its factorization.

12791227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3528, while the sum is 31.

The square root of 12791227 is about 3576.4824898215. The cubic root of 12791227 is about 233.8679643268.

The spelling of 12791227 in words is "twelve million, seven hundred ninety-one thousand, two hundred twenty-seven".