127406971 has 4 divisors (see below), whose sum is σ = 128838600. Its totient is φ = 125975344.

The previous prime is 127406969. The next prime is 127406977. The reversal of 127406971 is 179604721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 179604721 = 313 ⋅573817.

It is a cyclic number.

It is not a de Polignac number, because 127406971 - 2¹ = 127406969 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 127406971.

It is not an unprimeable number, because it can be changed into a prime (127406977) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 715681 + ... + 715858.

It is an arithmetic number, because the mean of its divisors is an integer number (32209650).

Almost surely, 2^127406971 is an apocalyptic number.

127406971 is a deficient number, since it is larger than the sum of its proper divisors (1431629).

127406971 is an equidigital number, since it uses as much as digits as its factorization.

127406971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1431628.

The product of its (nonzero) digits is 21168, while the sum is 37.

The square root of 127406971 is about 11287.4696455849. The cubic root of 127406971 is about 503.1889130951.

The spelling of 127406971 in words is "one hundred twenty-seven million, four hundred six thousand, nine hundred seventy-one".