1296948726137 has 2 divisors, whose sum is σ = 1296948726138. Its totient is φ = 1296948726136.

The previous prime is 1296948726131. The next prime is 1296948726191. The reversal of 1296948726137 is 7316278496921.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 720094805056 + 576853921081 = 848584^2 + 759509^2 .

It is an emirp because it is prime and its reverse (7316278496921) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1296948726137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1296948726131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 648474363068 + 648474363069.

It is an arithmetic number, because the mean of its divisors is an integer number (648474363069).

Almost surely, 2^{1296948726137} is an apocalyptic number.

It is an amenable number.

1296948726137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1296948726137 is an equidigital number, since it uses as much as digits as its factorization.

1296948726137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54867456, while the sum is 65.

The spelling of 1296948726137 in words is "one trillion, two hundred ninety-six billion, nine hundred forty-eight million, seven hundred twenty-six thousand, one hundred thirty-seven".