126743743 has 12 divisors (see below), whose sum is σ = 149098320. Its totient is φ = 107413152.

The previous prime is 126743713. The next prime is 126743791. The reversal of 126743743 is 347347621.

It is not a de Polignac number, because 126743743 - 2²⁵ = 93189311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (126743713) 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 in 11 ways as a sum of consecutive naturals, for example, 10171 + ... + 18892.

It is an arithmetic number, because the mean of its divisors is an integer number (12424860).

Almost surely, 2^126743743 is an apocalyptic number.

126743743 is a deficient number, since it is larger than the sum of its proper divisors (22354577).

126743743 is an equidigital number, since it uses as much as digits as its factorization.

126743743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29166 (or 29159 counting only the distinct ones).

The product of its digits is 84672, while the sum is 37.

The square root of 126743743 is about 11258.0523626425. The cubic root of 126743743 is about 502.3142625183.

The spelling of 126743743 in words is "one hundred twenty-six million, seven hundred forty-three thousand, seven hundred forty-three".