4222165 has 4 divisors (see below), whose sum is σ = 5066604. Its totient is φ = 3377728.

The previous prime is 4222117. The next prime is 4222177. The reversal of 4222165 is 5612224.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1633284 + 2588881 = 1278^2 + 1609^2 .

It is a cyclic number.

It is not a de Polignac number, because 4222165 - 2⁷ = 4222037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 422212 + ... + 422221.

It is an arithmetic number, because the mean of its divisors is an integer number (1266651).

Almost surely, 2^4222165 is an apocalyptic number.

It is an amenable number.

4222165 is a deficient number, since it is larger than the sum of its proper divisors (844439).

4222165 is an equidigital number, since it uses as much as digits as its factorization.

4222165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 844438.

The product of its digits is 960, while the sum is 22.

The square root of 4222165 is about 2054.7907436038. The cubic root of 4222165 is about 161.6261893680.

Adding to 4222165 its reverse (5612224), we get a palindrome (9834389).

It can be divided in two parts, 42 and 22165, that multiplied together give a triangular number (930930 = T₁₃₆₄).

The spelling of 4222165 in words is "four million, two hundred twenty-two thousand, one hundred sixty-five".