13126137727 has 2 divisors, whose sum is σ = 13126137728. Its totient is φ = 13126137726.

The previous prime is 13126137653. The next prime is 13126137751. The reversal of 13126137727 is 72773162131.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13126137727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13126137727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13126137757) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6563068863 + 6563068864.

It is an arithmetic number, because the mean of its divisors is an integer number (6563068864).

Almost surely, 2^13126137727 is an apocalyptic number.

13126137727 is a deficient number, since it is larger than the sum of its proper divisors (1).

13126137727 is an equidigital number, since it uses as much as digits as its factorization.

13126137727 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74088, while the sum is 40.

Adding to 13126137727 its reverse (72773162131), we get a palindrome (85899299858).

The spelling of 13126137727 in words is "thirteen billion, one hundred twenty-six million, one hundred thirty-seven thousand, seven hundred twenty-seven".