127165081 has 8 divisors (see below), whose sum is σ = 134462720. Its totient is φ = 119927952.

The previous prime is 127165021. The next prime is 127165099. The reversal of 127165081 is 180561721.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 127165081 - 2¹¹ = 127163033 is a prime.

It is a super-2 number, since 2×127165081² = 32341915651473122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127165021) 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 7 ways as a sum of consecutive naturals, for example, 10770 + ... + 19243.

It is an arithmetic number, because the mean of its divisors is an integer number (16807840).

Almost surely, 2^127165081 is an apocalyptic number.

It is an amenable number.

127165081 is a deficient number, since it is larger than the sum of its proper divisors (7297639).

127165081 is a wasteful number, since it uses less digits than its factorization.

127165081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30255.

The product of its (nonzero) digits is 3360, while the sum is 31.

The square root of 127165081 is about 11276.7495760082. The cubic root of 127165081 is about 502.8702662810.

Subtracting from 127165081 its product of nonzero digits (3360), we obtain a palindrome (127161721).

The spelling of 127165081 in words is "one hundred twenty-seven million, one hundred sixty-five thousand, eighty-one".