126259126493 has 2 divisors, whose sum is σ = 126259126494. Its totient is φ = 126259126492.

The previous prime is 126259126481. The next prime is 126259126501. The reversal of 126259126493 is 394621952621.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75844058404 + 50415068089 = 275398^2 + 224533^2 .

It is a cyclic number.

It is not a de Polignac number, because 126259126493 - 2⁸ = 126259126237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126259126193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63129563246 + 63129563247.

It is an arithmetic number, because the mean of its divisors is an integer number (63129563247).

Almost surely, 2^126259126493 is an apocalyptic number.

It is an amenable number.

126259126493 is a deficient number, since it is larger than the sum of its proper divisors (1).

126259126493 is an equidigital number, since it uses as much as digits as its factorization.

126259126493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1399680, while the sum is 50.

The spelling of 126259126493 in words is "one hundred twenty-six billion, two hundred fifty-nine million, one hundred twenty-six thousand, four hundred ninety-three".