224765 has 4 divisors (see below), whose sum is σ = 269724. Its totient is φ = 179808.

The previous prime is 224759. The next prime is 224771. The reversal of 224765 is 567422.

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

It is an interprime number because it is at equal distance from previous prime (224759) and next prime (224771).

It can be written as a sum of positive squares in 2 ways, for example, as 177241 + 47524 = 421^2 + 218^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-224765 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 224765.

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, 22472 + ... + 22481.

It is an arithmetic number, because the mean of its divisors is an integer number (67431).

2²²⁴⁷⁶⁵ is an apocalyptic number.

It is an amenable number.

224765 is a deficient number, since it is larger than the sum of its proper divisors (44959).

224765 is an equidigital number, since it uses as much as digits as its factorization.

224765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44958.

The product of its digits is 3360, while the sum is 26.

The square root of 224765 is about 474.0938725611. The cubic root of 224765 is about 60.8008375058.

It can be divided in two parts, 224 and 765, that added together give a palindrome (989).

The spelling of 224765 in words is "two hundred twenty-four thousand, seven hundred sixty-five".