127113771 has 4 divisors (see below), whose sum is σ = 169485032. Its totient is φ = 84742512.

The previous prime is 127113761. The next prime is 127113773. The reversal of 127113771 is 177311721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 177311721 = 3 ⋅59103907.

It is not a de Polignac number, because 127113771 - 2⁵ = 127113739 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127113773) 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, 21185626 + ... + 21185631.

It is an arithmetic number, because the mean of its divisors is an integer number (42371258).

Almost surely, 2^127113771 is an apocalyptic number.

127113771 is a deficient number, since it is larger than the sum of its proper divisors (42371261).

127113771 is an equidigital number, since it uses as much as digits as its factorization.

127113771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42371260.

The product of its digits is 2058, while the sum is 30.

The square root of 127113771 is about 11274.4743114701. The cubic root of 127113771 is about 502.8026225949.

The spelling of 127113771 in words is "one hundred twenty-seven million, one hundred thirteen thousand, seven hundred seventy-one".