126566747 has 2 divisors, whose sum is σ = 126566748. Its totient is φ = 126566746.

The previous prime is 126566719. The next prime is 126566749. The reversal of 126566747 is 747665621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126566747 - 2¹⁰ = 126565723 is a prime.

Together with 126566749, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 126566698 and 126566707.

It is not a weakly prime, because it can be changed into another prime (126566749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63283373 + 63283374.

It is an arithmetic number, because the mean of its divisors is an integer number (63283374).

Almost surely, 2^126566747 is an apocalyptic number.

126566747 is a deficient number, since it is larger than the sum of its proper divisors (1).

126566747 is an equidigital number, since it uses as much as digits as its factorization.

126566747 is an evil number, because the sum of its binary digits is even.

The product of its digits is 423360, while the sum is 44.

The square root of 126566747 is about 11250.1887539721. The cubic root of 126566747 is about 502.0803284627.

The spelling of 126566747 in words is "one hundred twenty-six million, five hundred sixty-six thousand, seven hundred forty-seven".