8165237 has 4 divisors (see below), whose sum is σ = 8176140. Its totient is φ = 8154336.

The previous prime is 8165221. The next prime is 8165239. The reversal of 8165237 is 7325618.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7325618 = 2 ⋅3662809.

It can be written as a sum of positive squares in 2 ways, for example, as 5827396 + 2337841 = 2414^2 + 1529^2 .

It is a cyclic number.

It is not a de Polignac number, because 8165237 - 2⁴ = 8165221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8165239) 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, 4238 + ... + 5855.

It is an arithmetic number, because the mean of its divisors is an integer number (2044035).

Almost surely, 2^8165237 is an apocalyptic number.

It is an amenable number.

8165237 is a deficient number, since it is larger than the sum of its proper divisors (10903).

8165237 is a wasteful number, since it uses less digits than its factorization.

8165237 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10902.

The product of its digits is 10080, while the sum is 32.

The square root of 8165237 is about 2857.4878827390. The cubic root of 8165237 is about 201.3676020081.

The spelling of 8165237 in words is "eight million, one hundred sixty-five thousand, two hundred thirty-seven".