126438727 has 2 divisors, whose sum is σ = 126438728. Its totient is φ = 126438726.

The previous prime is 126438721. The next prime is 126438743. The reversal of 126438727 is 727834621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126438727 - 2¹⁵ = 126405959 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126438727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126438721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63219363 + 63219364.

It is an arithmetic number, because the mean of its divisors is an integer number (63219364).

Almost surely, 2^126438727 is an apocalyptic number.

126438727 is a deficient number, since it is larger than the sum of its proper divisors (1).

126438727 is an equidigital number, since it uses as much as digits as its factorization.

126438727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 40.

The square root of 126438727 is about 11244.4976321755. The cubic root of 126438727 is about 501.9109895992.

The spelling of 126438727 in words is "one hundred twenty-six million, four hundred thirty-eight thousand, seven hundred twenty-seven".