126319859 has 2 divisors, whose sum is σ = 126319860. Its totient is φ = 126319858.

The previous prime is 126319819. The next prime is 126319867. The reversal of 126319859 is 958913621.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126319859 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (126319819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63159929 + 63159930.

It is an arithmetic number, because the mean of its divisors is an integer number (63159930).

Almost surely, 2^126319859 is an apocalyptic number.

126319859 is a deficient number, since it is larger than the sum of its proper divisors (1).

126319859 is an equidigital number, since it uses as much as digits as its factorization.

126319859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 44.

The square root of 126319859 is about 11239.2107819010. The cubic root of 126319859 is about 501.7536542032.

The spelling of 126319859 in words is "one hundred twenty-six million, three hundred nineteen thousand, eight hundred fifty-nine".