2273165 has 16 divisors (see below), whose sum is σ = 2879280. Its totient is φ = 1720320.

The previous prime is 2273153. The next prime is 2273171. The reversal of 2273165 is 5613722.

It can be written as a sum of positive squares in 8 ways, for example, as 2116 + 2271049 = 46^2 + 1507^2 .

It is not a de Polignac number, because 2273165 - 2⁶ = 2273101 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8717 + ... + 8973.

It is an arithmetic number, because the mean of its divisors is an integer number (179955).

2^2273165 is an apocalyptic number.

It is an amenable number.

2273165 is a deficient number, since it is larger than the sum of its proper divisors (606115).

2273165 is a wasteful number, since it uses less digits than its factorization.

2273165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352.

The product of its digits is 2520, while the sum is 26.

The square root of 2273165 is about 1507.7018936116. The cubic root of 2273165 is about 131.4852349848.

Adding to 2273165 its reverse (5613722), we get a palindrome (7886887).

The spelling of 2273165 in words is "two million, two hundred seventy-three thousand, one hundred sixty-five".