2263165 has 4 divisors (see below), whose sum is σ = 2715804. Its totient is φ = 1810528.

The previous prime is 2263141. The next prime is 2263169. The reversal of 2263165 is 5613622.

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 1552516 + 710649 = 1246^2 + 843^2 .

It is a cyclic number.

It is not a de Polignac number, because 2263165 - 2¹¹ = 2261117 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 (2263169) 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, 226312 + ... + 226321.

It is an arithmetic number, because the mean of its divisors is an integer number (678951).

2^2263165 is an apocalyptic number.

It is an amenable number.

2263165 is a deficient number, since it is larger than the sum of its proper divisors (452639).

2263165 is an equidigital number, since it uses as much as digits as its factorization.

2263165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 452638.

The product of its digits is 2160, while the sum is 25.

The square root of 2263165 is about 1504.3819328881. The cubic root of 2263165 is about 131.2921436849.

Adding to 2263165 its reverse (5613622), we get a palindrome (7876787).

The spelling of 2263165 in words is "two million, two hundred sixty-three thousand, one hundred sixty-five".