126743 has 2 divisors, whose sum is σ = 126744. Its totient is φ = 126742.

The previous prime is 126739. The next prime is 126751. The reversal of 126743 is 347621.

It is a weak prime.

It is an emirp because it is prime and its reverse (347621) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 126743 - 2² = 126739 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63371 + 63372.

It is an arithmetic number, because the mean of its divisors is an integer number (63372).

2¹²⁶⁷⁴³ is an apocalyptic number.

126743 is a deficient number, since it is larger than the sum of its proper divisors (1).

126743 is an equidigital number, since it uses as much as digits as its factorization.

126743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1008, while the sum is 23.

The square root of 126743 is about 356.0098313249. The cubic root of 126743 is about 50.2313280957.

The spelling of 126743 in words is "one hundred twenty-six thousand, seven hundred forty-three".