127840975 has 6 divisors (see below), whose sum is σ = 158522840. Its totient is φ = 102272760.

The previous prime is 127840963. The next prime is 127840991. The reversal of 127840975 is 579048721.

It is not a de Polignac number, because 127840975 - 2⁵ = 127840943 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2556795 + ... + 2556844.

Almost surely, 2^127840975 is an apocalyptic number.

127840975 is a deficient number, since it is larger than the sum of its proper divisors (30681865).

127840975 is an equidigital number, since it uses as much as digits as its factorization.

127840975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5113649 (or 5113644 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 43.

The square root of 127840975 is about 11306.6783362754. The cubic root of 127840975 is about 503.7596262325.

The spelling of 127840975 in words is "one hundred twenty-seven million, eight hundred forty thousand, nine hundred seventy-five".