8861181 has 16 divisors (see below), whose sum is σ = 13545600. Its totient is φ = 5047488.

The previous prime is 8861173. The next prime is 8861191. The reversal of 8861181 is 1811688.

It is not a de Polignac number, because 8861181 - 2³ = 8861173 is a prime.

It is a super-2 number, since 2×8861181² = 157041057429522, which contains 22 as substring.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8861191) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10275 + ... + 11103.

It is an arithmetic number, because the mean of its divisors is an integer number (846600).

Almost surely, 2^8861181 is an apocalyptic number.

It is an amenable number.

8861181 is a deficient number, since it is larger than the sum of its proper divisors (4684419).

8861181 is a wasteful number, since it uses less digits than its factorization.

8861181 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1348.

The product of its digits is 3072, while the sum is 33.

The square root of 8861181 is about 2976.7735889718. The cubic root of 8861181 is about 206.9333725683.

The spelling of 8861181 in words is "eight million, eight hundred sixty-one thousand, one hundred eighty-one".