8165138 has 16 divisors (see below), whose sum is σ = 12882240. Its totient is φ = 3873936.

The previous prime is 8165111. The next prime is 8165149. The reversal of 8165138 is 8315618.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5756 + ... + 7032.

It is an arithmetic number, because the mean of its divisors is an integer number (805140).

Almost surely, 2^8165138 is an apocalyptic number.

8165138 is a deficient number, since it is larger than the sum of its proper divisors (4717102).

8165138 is a wasteful number, since it uses less digits than its factorization.

8165138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441.

The product of its digits is 5760, while the sum is 32.

The square root of 8165138 is about 2857.4705597784. The cubic root of 8165138 is about 201.3667881729.

The spelling of 8165138 in words is "eight million, one hundred sixty-five thousand, one hundred thirty-eight".