126320443 has 16 divisors (see below), whose sum is σ = 134184960. Its totient is φ = 118735200.

The previous prime is 126320429. The next prime is 126320503. The reversal of 126320443 is 344023621.

It is a cyclic number.

It is not a de Polignac number, because 126320443 - 2²¹ = 124223291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (126320543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 263478 + ... + 263956.

It is an arithmetic number, because the mean of its divisors is an integer number (8386560).

Almost surely, 2^126320443 is an apocalyptic number.

126320443 is a deficient number, since it is larger than the sum of its proper divisors (7864517).

126320443 is a wasteful number, since it uses less digits than its factorization.

126320443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738.

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 126320443 is about 11239.2367623429. The cubic root of 126320443 is about 501.7544274352.

The spelling of 126320443 in words is "one hundred twenty-six million, three hundred twenty thousand, four hundred forty-three".