13126004537 has 2 divisors, whose sum is σ = 13126004538. Its totient is φ = 13126004536.

The previous prime is 13126004503. The next prime is 13126004543. The reversal of 13126004537 is 73540062131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10604056576 + 2521947961 = 102976^2 + 50219^2 .

It is a cyclic number.

It is not a de Polignac number, because 13126004537 - 2²⁶ = 13058895673 is a prime.

It is not a weakly prime, because it can be changed into another prime (13126009537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6563002268 + 6563002269.

It is an arithmetic number, because the mean of its divisors is an integer number (6563002269).

Almost surely, 2^13126004537 is an apocalyptic number.

It is an amenable number.

13126004537 is a deficient number, since it is larger than the sum of its proper divisors (1).

13126004537 is an equidigital number, since it uses as much as digits as its factorization.

13126004537 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 32.

Adding to 13126004537 its reverse (73540062131), we get a palindrome (86666066668).

The spelling of 13126004537 in words is "thirteen billion, one hundred twenty-six million, four thousand, five hundred thirty-seven".