6531313441 has 6 divisors (see below), whose sum is σ = 6893159442. Its totient is φ = 6187559760.

The previous prime is 6531313429. The next prime is 6531313457. The reversal of 6531313441 is 1443131356.

It can be written as a sum of positive squares in only one way, i.e., 3514118400 + 3017195041 = 59280^2 + 54929^2 .

It is not a de Polignac number, because 6531313441 - 2¹¹ = 6531311393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6531313421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 9045780 + ... + 9046501.

It is an arithmetic number, because the mean of its divisors is an integer number (1148859907).

Almost surely, 2^6531313441 is an apocalyptic number.

It is an amenable number.

6531313441 is a deficient number, since it is larger than the sum of its proper divisors (361846001).

6531313441 is a wasteful number, since it uses less digits than its factorization.

6531313441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18092319 (or 18092300 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 6531313441 is about 80816.5418772667. The cubic root of 6531313441 is about 1869.2476446710.

Adding to 6531313441 its reverse (1443131356), we get a palindrome (7974444797).

The spelling of 6531313441 in words is "six billion, five hundred thirty-one million, three hundred thirteen thousand, four hundred forty-one".