224231165 has 4 divisors (see below), whose sum is σ = 269077404. Its totient is φ = 179384928.

The previous prime is 224231149. The next prime is 224231167. The reversal of 224231165 is 561132422.

It is a happy number.

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 151265401 + 72965764 = 12299^2 + 8542^2 .

It is a cyclic number.

It is not a de Polignac number, because 224231165 - 2⁴ = 224231149 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 (224231167) 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, 22423112 + ... + 22423121.

It is an arithmetic number, because the mean of its divisors is an integer number (67269351).

Almost surely, 2^224231165 is an apocalyptic number.

It is an amenable number.

224231165 is a deficient number, since it is larger than the sum of its proper divisors (44846239).

224231165 is an equidigital number, since it uses as much as digits as its factorization.

224231165 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44846238.

The product of its digits is 2880, while the sum is 26.

The square root of 224231165 is about 14974.3502363208. The cubic root of 224231165 is about 607.5266371606.

Adding to 224231165 its reverse (561132422), we get a palindrome (785363587).

The spelling of 224231165 in words is "two hundred twenty-four million, two hundred thirty-one thousand, one hundred sixty-five".