126816727 has 2 divisors, whose sum is σ = 126816728. Its totient is φ = 126816726.

The previous prime is 126816713. The next prime is 126816791. The reversal of 126816727 is 727618621.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-126816727 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 126816727.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (126816707) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63408363 + 63408364.

It is an arithmetic number, because the mean of its divisors is an integer number (63408364).

Almost surely, 2^126816727 is an apocalyptic number.

126816727 is a deficient number, since it is larger than the sum of its proper divisors (1).

126816727 is an equidigital number, since it uses as much as digits as its factorization.

126816727 is an evil number, because the sum of its binary digits is even.

The product of its digits is 56448, while the sum is 40.

The square root of 126816727 is about 11261.2933093850. The cubic root of 126816727 is about 502.4106614111.

The spelling of 126816727 in words is "one hundred twenty-six million, eight hundred sixteen thousand, seven hundred twenty-seven".