12127393 has 2 divisors, whose sum is σ = 12127394. Its totient is φ = 12127392.

The previous prime is 12127387. The next prime is 12127397. The reversal of 12127393 is 39372121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9193024 + 2934369 = 3032^2 + 1713^2 .

It is an emirp because it is prime and its reverse (39372121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12127393 is a prime.

It is not a weakly prime, because it can be changed into another prime (12127397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6063696 + 6063697.

It is an arithmetic number, because the mean of its divisors is an integer number (6063697).

Almost surely, 2^12127393 is an apocalyptic number.

It is an amenable number.

12127393 is a deficient number, since it is larger than the sum of its proper divisors (1).

12127393 is an equidigital number, since it uses as much as digits as its factorization.

12127393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 28.

The square root of 12127393 is about 3482.4406671184. The cubic root of 12127393 is about 229.7501571821.

The spelling of 12127393 in words is "twelve million, one hundred twenty-seven thousand, three hundred ninety-three".