27071161 has 16 divisors (see below), whose sum is σ = 31256064. Its totient is φ = 23246784.

The previous prime is 27071119. The next prime is 27071179. The reversal of 27071161 is 16117072.

It is a cyclic number.

It is not a de Polignac number, because 27071161 - 2²¹ = 24974009 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27071461) 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 15 ways as a sum of consecutive naturals, for example, 9840 + ... + 12286.

It is an arithmetic number, because the mean of its divisors is an integer number (1953504).

Almost surely, 2^27071161 is an apocalyptic number.

It is an amenable number.

27071161 is a deficient number, since it is larger than the sum of its proper divisors (4184903).

27071161 is a wasteful number, since it uses less digits than its factorization.

27071161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2520.

The product of its (nonzero) digits is 588, while the sum is 25.

The square root of 27071161 is about 5202.9953872745. The cubic root of 27071161 is about 300.2633280528.

The spelling of 27071161 in words is "twenty-seven million, seventy-one thousand, one hundred sixty-one".