126273165133 has 2 divisors, whose sum is σ = 126273165134. Its totient is φ = 126273165132.

The previous prime is 126273165127. The next prime is 126273165181. The reversal of 126273165133 is 331561372621.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124215363364 + 2057801769 = 352442^2 + 45363^2 .

It is a cyclic number.

It is not a de Polignac number, because 126273165133 - 2⁵ = 126273165101 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126273135133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63136582566 + 63136582567.

It is an arithmetic number, because the mean of its divisors is an integer number (63136582567).

Almost surely, 2^126273165133 is an apocalyptic number.

It is an amenable number.

126273165133 is a deficient number, since it is larger than the sum of its proper divisors (1).

126273165133 is an equidigital number, since it uses as much as digits as its factorization.

126273165133 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 136080, while the sum is 40.

The spelling of 126273165133 in words is "one hundred twenty-six billion, two hundred seventy-three million, one hundred sixty-five thousand, one hundred thirty-three".