8081132571 has 6 divisors (see below), whose sum is σ = 11672747060. Its totient is φ = 5387421708.

The previous prime is 8081132557. The next prime is 8081132603. The reversal of 8081132571 is 1752311808.

8081132571 is a `hidden beast` number, since 8 + 0 + 81 + 1 + 3 + 2 + 571 = 666.

It is not a de Polignac number, because 8081132571 - 2⁷ = 8081132443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8081132471) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 448951801 + ... + 448951818.

Almost surely, 2^8081132571 is an apocalyptic number.

8081132571 is a deficient number, since it is larger than the sum of its proper divisors (3591614489).

8081132571 is a wasteful number, since it uses less digits than its factorization.

8081132571 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 897903625 (or 897903622 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 36.

The square root of 8081132571 is about 89895.1198397332. The cubic root of 8081132571 is about 2006.7383196116.

The spelling of 8081132571 in words is "eight billion, eighty-one million, one hundred thirty-two thousand, five hundred seventy-one".