126787723 has 2 divisors, whose sum is σ = 126787724. Its totient is φ = 126787722.

The previous prime is 126787711. The next prime is 126787733. The reversal of 126787723 is 327787621.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 126787723 - 2⁵ = 126787691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126787723.

It is not a weakly prime, because it can be changed into another prime (126787733) 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, 63393861 + 63393862.

It is an arithmetic number, because the mean of its divisors is an integer number (63393862).

Almost surely, 2^126787723 is an apocalyptic number.

126787723 is a deficient number, since it is larger than the sum of its proper divisors (1).

126787723 is an equidigital number, since it uses as much as digits as its factorization.

126787723 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 197568, while the sum is 43.

The square root of 126787723 is about 11260.0054618104. The cubic root of 126787723 is about 502.3723567115.

The spelling of 126787723 in words is "one hundred twenty-six million, seven hundred eighty-seven thousand, seven hundred twenty-three".