127932971 has 2 divisors, whose sum is σ = 127932972. Its totient is φ = 127932970.

The previous prime is 127932967. The next prime is 127933019. The reversal of 127932971 is 179239721.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 127932971 - 2² = 127932967 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (127932271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63966485 + 63966486.

It is an arithmetic number, because the mean of its divisors is an integer number (63966486).

Almost surely, 2^127932971 is an apocalyptic number.

127932971 is a deficient number, since it is larger than the sum of its proper divisors (1).

127932971 is an equidigital number, since it uses as much as digits as its factorization.

127932971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 47628, while the sum is 41.

The square root of 127932971 is about 11310.7458197946. The cubic root of 127932971 is about 503.8804345478.

The spelling of 127932971 in words is "one hundred twenty-seven million, nine hundred thirty-two thousand, nine hundred seventy-one".