127056112609 has 4 divisors (see below), whose sum is σ = 134530001604. Its totient is φ = 119582223616.

The previous prime is 127056112583. The next prime is 127056112661. The reversal of 127056112609 is 906211650721.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38626006225 + 88430106384 = 196535^2 + 297372^2 .

It is not a de Polignac number, because 127056112609 - 2⁹ = 127056112097 is a prime.

It is a super-2 number, since 2×127056112609² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127056110609) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3736944472 + ... + 3736944505.

It is an arithmetic number, because the mean of its divisors is an integer number (33632500401).

Almost surely, 2^127056112609 is an apocalyptic number.

It is an amenable number.

127056112609 is a deficient number, since it is larger than the sum of its proper divisors (7473888995).

127056112609 is an equidigital number, since it uses as much as digits as its factorization.

127056112609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7473888994.

The product of its (nonzero) digits is 45360, while the sum is 40.

The spelling of 127056112609 in words is "one hundred twenty-seven billion, fifty-six million, one hundred twelve thousand, six hundred nine".