8165213 has 12 divisors (see below), whose sum is σ = 9636192. Its totient is φ = 6897240.

The previous prime is 8165149. The next prime is 8165221. The reversal of 8165213 is 3125618.

8165213 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8165213 - 2⁶ = 8165149 is a prime.

It is a Duffinian 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 (8165813) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2306 + ... + 4652.

It is an arithmetic number, because the mean of its divisors is an integer number (803016).

Almost surely, 2^8165213 is an apocalyptic number.

It is an amenable number.

8165213 is a deficient number, since it is larger than the sum of its proper divisors (1470979).

8165213 is a wasteful number, since it uses less digits than its factorization.

8165213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432 (or 2425 counting only the distinct ones).

The product of its digits is 1440, while the sum is 26.

The square root of 8165213 is about 2857.4836832430. The cubic root of 8165213 is about 201.3674047153.

The spelling of 8165213 in words is "eight million, one hundred sixty-five thousand, two hundred thirteen".