126217744127 has 2 divisors, whose sum is σ = 126217744128. Its totient is φ = 126217744126.

The previous prime is 126217744117. The next prime is 126217744181. The reversal of 126217744127 is 721447712621.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126217744127 - 2⁸ = 126217743871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126217744117) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63108872063 + 63108872064.

It is an arithmetic number, because the mean of its divisors is an integer number (63108872064).

Almost surely, 2^126217744127 is an apocalyptic number.

126217744127 is a deficient number, since it is larger than the sum of its proper divisors (1).

126217744127 is an equidigital number, since it uses as much as digits as its factorization.

126217744127 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 263424, while the sum is 44.

The spelling of 126217744127 in words is "one hundred twenty-six billion, two hundred seventeen million, seven hundred forty-four thousand, one hundred twenty-seven".