127056689 has 2 divisors, whose sum is σ = 127056690. Its totient is φ = 127056688.

The previous prime is 127056659. The next prime is 127056733. The reversal of 127056689 is 986650721.

It is an a-pointer prime, because the next prime (127056733) can be obtained adding 127056689 to its sum of digits (44).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121176064 + 5880625 = 11008^2 + 2425^2 .

It is a cyclic number.

It is not a de Polignac number, because 127056689 - 2¹² = 127052593 is a prime.

It is a super-2 number, since 2×127056689² = 32286804439285442, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (127056619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63528344 + 63528345.

It is an arithmetic number, because the mean of its divisors is an integer number (63528345).

Almost surely, 2^127056689 is an apocalyptic number.

It is an amenable number.

127056689 is a deficient number, since it is larger than the sum of its proper divisors (1).

127056689 is an equidigital number, since it uses as much as digits as its factorization.

127056689 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 127056689 is about 11271.9425566315. The cubic root of 127056689 is about 502.7273480952.

The spelling of 127056689 in words is "one hundred twenty-seven million, fifty-six thousand, six hundred eighty-nine".