8006181 has 4 divisors (see below), whose sum is σ = 10674912. Its totient is φ = 5337452.

The previous prime is 8006179. The next prime is 8006203. The reversal of 8006181 is 1816008.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8006181 - 2¹ = 8006179 is a prime.

It is a super-2 number, since 2×8006181² = 128197868409522, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8006101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1334361 + ... + 1334366.

It is an arithmetic number, because the mean of its divisors is an integer number (2668728).

Almost surely, 2^8006181 is an apocalyptic number.

It is an amenable number.

8006181 is a deficient number, since it is larger than the sum of its proper divisors (2668731).

8006181 is a wasteful number, since it uses less digits than its factorization.

8006181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668730.

The product of its (nonzero) digits is 384, while the sum is 24.

The square root of 8006181 is about 2829.5195705278. The cubic root of 8006181 is about 200.0514950735.

The spelling of 8006181 in words is "eight million, six thousand, one hundred eighty-one".