12271349 has 2 divisors, whose sum is σ = 12271350. Its totient is φ = 12271348.

The previous prime is 12271333. The next prime is 12271403. The reversal of 12271349 is 94317221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10125124 + 2146225 = 3182^2 + 1465^2 .

It is a cyclic number.

It is not a de Polignac number, because 12271349 - 2⁴ = 12271333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12271849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6135674 + 6135675.

It is an arithmetic number, because the mean of its divisors is an integer number (6135675).

Almost surely, 2^12271349 is an apocalyptic number.

It is an amenable number.

12271349 is a deficient number, since it is larger than the sum of its proper divisors (1).

12271349 is an equidigital number, since it uses as much as digits as its factorization.

12271349 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3024, while the sum is 29.

The square root of 12271349 is about 3503.0485294954. The cubic root of 12271349 is about 230.6556528074.

The spelling of 12271349 in words is "twelve million, two hundred seventy-one thousand, three hundred forty-nine".