126438743 has 2 divisors, whose sum is σ = 126438744. Its totient is φ = 126438742.

The previous prime is 126438727. The next prime is 126438757. The reversal of 126438743 is 347834621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126438743 - 2⁴ = 126438727 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 126438697 and 126438706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126438703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63219371 + 63219372.

It is an arithmetic number, because the mean of its divisors is an integer number (63219372).

Almost surely, 2^126438743 is an apocalyptic number.

126438743 is a deficient number, since it is larger than the sum of its proper divisors (1).

126438743 is an equidigital number, since it uses as much as digits as its factorization.

126438743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 96768, while the sum is 38.

The square root of 126438743 is about 11244.4983436345. The cubic root of 126438743 is about 501.9110107704.

The spelling of 126438743 in words is "one hundred twenty-six million, four hundred thirty-eight thousand, seven hundred forty-three".