126454838417 has 2 divisors, whose sum is σ = 126454838418. Its totient is φ = 126454838416.

The previous prime is 126454838381. The next prime is 126454838423. The reversal of 126454838417 is 714838454621.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109863079936 + 16591758481 = 331456^2 + 128809^2 .

It is a cyclic number.

It is not a de Polignac number, because 126454838417 - 2¹⁶ = 126454772881 is a prime.

It is not a weakly prime, because it can be changed into another prime (126454838437) 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, 63227419208 + 63227419209.

It is an arithmetic number, because the mean of its divisors is an integer number (63227419209).

Almost surely, 2^126454838417 is an apocalyptic number.

It is an amenable number.

126454838417 is a deficient number, since it is larger than the sum of its proper divisors (1).

126454838417 is an equidigital number, since it uses as much as digits as its factorization.

126454838417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5160960, while the sum is 53.

The spelling of 126454838417 in words is "one hundred twenty-six billion, four hundred fifty-four million, eight hundred thirty-eight thousand, four hundred seventeen".