127241089 has 2 divisors, whose sum is σ = 127241090. Its totient is φ = 127241088.

The previous prime is 127241087. The next prime is 127241099. The reversal of 127241089 is 980142721.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 69222400 + 58018689 = 8320^2 + 7617^2 .

It is a cyclic number.

It is not a de Polignac number, because 127241089 - 2¹ = 127241087 is a prime.

Together with 127241087, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (127241087) 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, 63620544 + 63620545.

It is an arithmetic number, because the mean of its divisors is an integer number (63620545).

Almost surely, 2^127241089 is an apocalyptic number.

It is an amenable number.

127241089 is a deficient number, since it is larger than the sum of its proper divisors (1).

127241089 is an equidigital number, since it uses as much as digits as its factorization.

127241089 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 127241089 is about 11280.1191926327. The cubic root of 127241089 is about 502.9704367317.

The spelling of 127241089 in words is "one hundred twenty-seven million, two hundred forty-one thousand, eighty-nine".