127930771 has 2 divisors, whose sum is σ = 127930772. Its totient is φ = 127930770.

The previous prime is 127930721. The next prime is 127930813. The reversal of 127930771 is 177039721.

It is a strong prime.

It is an emirp because it is prime and its reverse (177039721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127930771 - 2⁷ = 127930643 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 127930771.

It is not a weakly prime, because it can be changed into another prime (127930721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63965385 + 63965386.

It is an arithmetic number, because the mean of its divisors is an integer number (63965386).

Almost surely, 2^127930771 is an apocalyptic number.

127930771 is a deficient number, since it is larger than the sum of its proper divisors (1).

127930771 is an equidigital number, since it uses as much as digits as its factorization.

127930771 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18522, while the sum is 37.

The square root of 127930771 is about 11310.6485667268. The cubic root of 127930771 is about 503.8775462038.

The spelling of 127930771 in words is "one hundred twenty-seven million, nine hundred thirty thousand, seven hundred seventy-one".