12127447 has 2 divisors, whose sum is σ = 12127448. Its totient is φ = 12127446.

The previous prime is 12127433. The next prime is 12127459. The reversal of 12127447 is 74472121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12127447 - 2⁷ = 12127319 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12122447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063723 + 6063724.

It is an arithmetic number, because the mean of its divisors is an integer number (6063724).

Almost surely, 2^12127447 is an apocalyptic number.

12127447 is a deficient number, since it is larger than the sum of its proper divisors (1).

12127447 is an equidigital number, since it uses as much as digits as its factorization.

12127447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3136, while the sum is 28.

The square root of 12127447 is about 3482.4484202928. The cubic root of 12127447 is about 229.7504981867.

Adding to 12127447 its reverse (74472121), we get a palindrome (86599568).

The spelling of 12127447 in words is "twelve million, one hundred twenty-seven thousand, four hundred forty-seven".