127960681 has 2 divisors, whose sum is σ = 127960682. Its totient is φ = 127960680.

The previous prime is 127960663. The next prime is 127960697. The reversal of 127960681 is 186069721.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127328656 + 632025 = 11284^2 + 795^2 .

It is a cyclic number.

It is not a de Polignac number, because 127960681 - 2¹⁷ = 127829609 is a prime.

It is a super-2 number, since 2×127960681² = 32747871763967522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (127160681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63980340 + 63980341.

It is an arithmetic number, because the mean of its divisors is an integer number (63980341).

Almost surely, 2^127960681 is an apocalyptic number.

It is an amenable number.

127960681 is a deficient number, since it is larger than the sum of its proper divisors (1).

127960681 is an equidigital number, since it uses as much as digits as its factorization.

127960681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 127960681 is about 11311.9706947994. The cubic root of 127960681 is about 503.9168117193.

The spelling of 127960681 in words is "one hundred twenty-seven million, nine hundred sixty thousand, six hundred eighty-one".