13443126497 has 2 divisors, whose sum is σ = 13443126498. Its totient is φ = 13443126496.

The previous prime is 13443126479. The next prime is 13443126511. The reversal of 13443126497 is 79462134431.

Together with previous prime (13443126479) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10646937856 + 2796188641 = 103184^2 + 52879^2 .

It is a cyclic number.

It is not a de Polignac number, because 13443126497 - 2¹⁰ = 13443125473 is a prime.

It is not a weakly prime, because it can be changed into another prime (13443126097) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6721563248 + 6721563249.

It is an arithmetic number, because the mean of its divisors is an integer number (6721563249).

Almost surely, 2^13443126497 is an apocalyptic number.

It is an amenable number.

13443126497 is a deficient number, since it is larger than the sum of its proper divisors (1).

13443126497 is an equidigital number, since it uses as much as digits as its factorization.

13443126497 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 435456, while the sum is 44.

The spelling of 13443126497 in words is "thirteen billion, four hundred forty-three million, one hundred twenty-six thousand, four hundred ninety-seven".