8181164 has 12 divisors (see below), whose sum is σ = 14358624. Its totient is φ = 4078704.

The previous prime is 8181139. The next prime is 8181167. The reversal of 8181164 is 4611818.

It is not an unprimeable number, because it can be changed into a prime (8181167) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1319 + ... + 4254.

It is an arithmetic number, because the mean of its divisors is an integer number (1196552).

Almost surely, 2^8181164 is an apocalyptic number.

It is an amenable number.

8181164 is a deficient number, since it is larger than the sum of its proper divisors (6177460).

8181164 is a wasteful number, since it uses less digits than its factorization.

8181164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5944 (or 5942 counting only the distinct ones).

The product of its digits is 1536, while the sum is 29.

The square root of 8181164 is about 2860.2734135044. The cubic root of 8181164 is about 201.4984452712.

The spelling of 8181164 in words is "eight million, one hundred eighty-one thousand, one hundred sixty-four".