12864227 has 2 divisors, whose sum is σ = 12864228. Its totient is φ = 12864226.

The previous prime is 12864217. The next prime is 12864233. The reversal of 12864227 is 72246821.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12864227 - 2²² = 8669923 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12864193 and 12864202.

It is not a weakly prime, because it can be changed into another prime (12864217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6432113 + 6432114.

It is an arithmetic number, because the mean of its divisors is an integer number (6432114).

Almost surely, 2^12864227 is an apocalyptic number.

12864227 is a deficient number, since it is larger than the sum of its proper divisors (1).

12864227 is an equidigital number, since it uses as much as digits as its factorization.

12864227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10752, while the sum is 32.

The square root of 12864227 is about 3586.6735284941. The cubic root of 12864227 is about 234.3120183244.

The spelling of 12864227 in words is "twelve million, eight hundred sixty-four thousand, two hundred twenty-seven".