2265765 has 8 divisors (see below), whose sum is σ = 3625248. Its totient is φ = 1208400.

The previous prime is 2265761. The next prime is 2265779. The reversal of 2265765 is 5675622.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2265765 - 2² = 2265761 is a prime.

2265765 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2265761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75511 + ... + 75540.

It is an arithmetic number, because the mean of its divisors is an integer number (453156).

2^2265765 is an apocalyptic number.

It is an amenable number.

2265765 is a deficient number, since it is larger than the sum of its proper divisors (1359483).

2265765 is a wasteful number, since it uses less digits than its factorization.

2265765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151059.

The product of its digits is 25200, while the sum is 33.

The square root of 2265765 is about 1505.2458270993. The cubic root of 2265765 is about 131.3424020524.

It can be divided in two parts, 22657 and 65, that added together give a palindrome (22722).

The spelling of 2265765 in words is "two million, two hundred sixty-five thousand, seven hundred sixty-five".