126419743 has 2 divisors, whose sum is σ = 126419744. Its totient is φ = 126419742.

The previous prime is 126419731. The next prime is 126419759. The reversal of 126419743 is 347914621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126419743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126419773) 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, 63209871 + 63209872.

It is an arithmetic number, because the mean of its divisors is an integer number (63209872).

Almost surely, 2^126419743 is an apocalyptic number.

126419743 is a deficient number, since it is larger than the sum of its proper divisors (1).

126419743 is an equidigital number, since it uses as much as digits as its factorization.

126419743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 36288, while the sum is 37.

The square root of 126419743 is about 11243.6534542826. The cubic root of 126419743 is about 501.8858687222.

The spelling of 126419743 in words is "one hundred twenty-six million, four hundred nineteen thousand, seven hundred forty-three".