641341133 has 4 divisors (see below), whose sum is σ = 679067100. Its totient is φ = 603615168.

The previous prime is 641341117. The next prime is 641341153. The reversal of 641341133 is 331143146.

641341133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 458902084 + 182439049 = 21422^2 + 13507^2 .

It is a cyclic number.

It is not a de Polignac number, because 641341133 - 2⁴ = 641341117 is a prime.

It is a super-2 number, since 2×641341133² = 822636897755447378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (641341153) 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, 18862958 + ... + 18862991.

It is an arithmetic number, because the mean of its divisors is an integer number (169766775).

Almost surely, 2^641341133 is an apocalyptic number.

It is an amenable number.

641341133 is a deficient number, since it is larger than the sum of its proper divisors (37725967).

641341133 is a wasteful number, since it uses less digits than its factorization.

641341133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37725966.

The product of its digits is 2592, while the sum is 26.

The square root of 641341133 is about 25324.7138779493. The cubic root of 641341133 is about 862.3754109193.

Adding to 641341133 its reverse (331143146), we get a palindrome (972484279).

The spelling of 641341133 in words is "six hundred forty-one million, three hundred forty-one thousand, one hundred thirty-three".