126125443 has 2 divisors, whose sum is σ = 126125444. Its totient is φ = 126125442.

The previous prime is 126125413. The next prime is 126125497. The reversal of 126125443 is 344521621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 126125443 - 2⁵ = 126125411 is a prime.

It is not a weakly prime, because it can be changed into another prime (126125413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63062721 + 63062722.

It is an arithmetic number, because the mean of its divisors is an integer number (63062722).

Almost surely, 2^126125443 is an apocalyptic number.

126125443 is a deficient number, since it is larger than the sum of its proper divisors (1).

126125443 is an equidigital number, since it uses as much as digits as its factorization.

126125443 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5760, while the sum is 28.

The square root of 126125443 is about 11230.5584455983. The cubic root of 126125443 is about 501.4961095142.

The spelling of 126125443 in words is "one hundred twenty-six million, one hundred twenty-five thousand, four hundred forty-three".