127142797 has 2 divisors, whose sum is σ = 127142798. Its totient is φ = 127142796.

The previous prime is 127142789. The next prime is 127142863. The reversal of 127142797 is 797241721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 124300201 + 2842596 = 11149^2 + 1686^2 .

It is an emirp because it is prime and its reverse (797241721) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 127142797 - 2³ = 127142789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127142747) 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, 63571398 + 63571399.

It is an arithmetic number, because the mean of its divisors is an integer number (63571399).

Almost surely, 2^127142797 is an apocalyptic number.

It is an amenable number.

127142797 is a deficient number, since it is larger than the sum of its proper divisors (1).

127142797 is an equidigital number, since it uses as much as digits as its factorization.

127142797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 49392, while the sum is 40.

The square root of 127142797 is about 11275.7614820463. The cubic root of 127142797 is about 502.8408907754.

The spelling of 127142797 in words is "one hundred twenty-seven million, one hundred forty-two thousand, seven hundred ninety-seven".