264144223 has 4 divisors (see below), whose sum is σ = 301879120. Its totient is φ = 226409328.

The previous prime is 264144203. The next prime is 264144233. The reversal of 264144223 is 322441462.

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

It is a cyclic number.

It is not a de Polignac number, because 264144223 - 2⁵ = 264144191 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 264144191 and 264144200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (264144203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18867438 + ... + 18867451.

It is an arithmetic number, because the mean of its divisors is an integer number (75469780).

Almost surely, 2^264144223 is an apocalyptic number.

264144223 is a deficient number, since it is larger than the sum of its proper divisors (37734897).

264144223 is an equidigital number, since it uses as much as digits as its factorization.

264144223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37734896.

The product of its digits is 9216, while the sum is 28.

The square root of 264144223 is about 16252.5143593230. The cubic root of 264144223 is about 641.6236629713.

Adding to 264144223 its reverse (322441462), we get a palindrome (586585685).

It can be divided in two parts, 2641 and 44223, that added together give a palindrome (46864).

The spelling of 264144223 in words is "two hundred sixty-four million, one hundred forty-four thousand, two hundred twenty-three".