12719771 has 2 divisors, whose sum is σ = 12719772. Its totient is φ = 12719770.

The previous prime is 12719767. The next prime is 12719783. The reversal of 12719771 is 17791721.

It is a weak prime.

It is an emirp because it is prime and its reverse (17791721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12719771 - 2² = 12719767 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12719741) 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, 6359885 + 6359886.

It is an arithmetic number, because the mean of its divisors is an integer number (6359886).

Almost surely, 2^12719771 is an apocalyptic number.

12719771 is a deficient number, since it is larger than the sum of its proper divisors (1).

12719771 is an equidigital number, since it uses as much as digits as its factorization.

12719771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6174, while the sum is 35.

The square root of 12719771 is about 3566.4787956751. The cubic root of 12719771 is about 233.4316630919.

The spelling of 12719771 in words is "twelve million, seven hundred nineteen thousand, seven hundred seventy-one".