126009799241 has 2 divisors, whose sum is σ = 126009799242. Its totient is φ = 126009799240.

The previous prime is 126009799219. The next prime is 126009799283. The reversal of 126009799241 is 142997900621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 78276288841 + 47733510400 = 279779^2 + 218480^2 .

It is a cyclic number.

It is not a de Polignac number, because 126009799241 - 2⁶ = 126009799177 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 126009799241.

It is not a weakly prime, because it can be changed into another prime (126009790241) 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, 63004899620 + 63004899621.

It is an arithmetic number, because the mean of its divisors is an integer number (63004899621).

Almost surely, 2^126009799241 is an apocalyptic number.

It is an amenable number.

126009799241 is a deficient number, since it is larger than the sum of its proper divisors (1).

126009799241 is an equidigital number, since it uses as much as digits as its factorization.

126009799241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 50.

The spelling of 126009799241 in words is "one hundred twenty-six billion, nine million, seven hundred ninety-nine thousand, two hundred forty-one".