6531224071 has 2 divisors, whose sum is σ = 6531224072. Its totient is φ = 6531224070.

The previous prime is 6531223991. The next prime is 6531224081. The reversal of 6531224071 is 1704221356.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6531224071 - 2⁷ = 6531223943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6531224081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3265612035 + 3265612036.

It is an arithmetic number, because the mean of its divisors is an integer number (3265612036).

Almost surely, 2^6531224071 is an apocalyptic number.

6531224071 is a deficient number, since it is larger than the sum of its proper divisors (1).

6531224071 is an equidigital number, since it uses as much as digits as its factorization.

6531224071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 6531224071 is about 80815.9889563940. The cubic root of 6531224071 is about 1869.2391187991.

The spelling of 6531224071 in words is "six billion, five hundred thirty-one million, two hundred twenty-four thousand, seventy-one".