126773443 has 2 divisors, whose sum is σ = 126773444. Its totient is φ = 126773442.

The previous prime is 126773407. The next prime is 126773459. The reversal of 126773443 is 344377621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126773443 - 2²¹ = 124676291 is a prime.

It is not a weakly prime, because it can be changed into another prime (126773473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63386721 + 63386722.

It is an arithmetic number, because the mean of its divisors is an integer number (63386722).

Almost surely, 2^126773443 is an apocalyptic number.

126773443 is a deficient number, since it is larger than the sum of its proper divisors (1).

126773443 is an equidigital number, since it uses as much as digits as its factorization.

126773443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 37.

The square root of 126773443 is about 11259.3713412428. The cubic root of 126773443 is about 502.3534954043.

The spelling of 126773443 in words is "one hundred twenty-six million, seven hundred seventy-three thousand, four hundred forty-three".