641043223 has 6 divisors (see below), whose sum is σ = 676558464. Its totient is φ = 607303764.

The previous prime is 641043197. The next prime is 641043229. The reversal of 641043223 is 322340146.

641043223 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-641043223 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 (641043229) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 887511 + ... + 888232.

It is an arithmetic number, because the mean of its divisors is an integer number (112759744).

Almost surely, 2^641043223 is an apocalyptic number.

641043223 is a deficient number, since it is larger than the sum of its proper divisors (35515241).

641043223 is a wasteful number, since it uses less digits than its factorization.

641043223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775781 (or 1775762 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

The square root of 641043223 is about 25318.8313908837. The cubic root of 641043223 is about 862.2418626224.

Adding to 641043223 its reverse (322340146), we get a palindrome (963383369).

The spelling of 641043223 in words is "six hundred forty-one million, forty-three thousand, two hundred twenty-three".