127975 has 6 divisors (see below), whose sum is σ = 158720. Its totient is φ = 102360.

The previous prime is 127973. The next prime is 127979. The reversal of 127975 is 579721.

It is not a de Polignac number, because 127975 - 2¹ = 127973 is a prime.

It is a zygodrome in base 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127973) 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 in 5 ways as a sum of consecutive naturals, for example, 2535 + ... + 2584.

2¹²⁷⁹⁷⁵ is an apocalyptic number.

127975 is a deficient number, since it is larger than the sum of its proper divisors (30745).

127975 is an equidigital number, since it uses as much as digits as its factorization.

127975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129 (or 5124 counting only the distinct ones).

The product of its digits is 4410, while the sum is 31.

The square root of 127975 is about 357.7359361317. The cubic root of 127975 is about 50.3935607378.

The spelling of 127975 in words is "one hundred twenty-seven thousand, nine hundred seventy-five".