126403867 has 2 divisors, whose sum is σ = 126403868. Its totient is φ = 126403866.

The previous prime is 126403841. The next prime is 126403897. The reversal of 126403867 is 768304621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126403867 - 2¹¹ = 126401819 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126403817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63201933 + 63201934.

It is an arithmetic number, because the mean of its divisors is an integer number (63201934).

Almost surely, 2^126403867 is an apocalyptic number.

126403867 is a deficient number, since it is larger than the sum of its proper divisors (1).

126403867 is an equidigital number, since it uses as much as digits as its factorization.

126403867 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 37.

The square root of 126403867 is about 11242.9474338360. The cubic root of 126403867 is about 501.8648586241.

The spelling of 126403867 in words is "one hundred twenty-six million, four hundred three thousand, eight hundred sixty-seven".