6481571 has 2 divisors, whose sum is σ = 6481572. Its totient is φ = 6481570.

The previous prime is 6481543. The next prime is 6481583. The reversal of 6481571 is 1751846.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6481571 - 2¹⁰ = 6480547 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (6481591) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3240785 + 3240786.

It is an arithmetic number, because the mean of its divisors is an integer number (3240786).

Almost surely, 2^6481571 is an apocalyptic number.

6481571 is a deficient number, since it is larger than the sum of its proper divisors (1).

6481571 is an equidigital number, since it uses as much as digits as its factorization.

6481571 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6720, while the sum is 32.

The square root of 6481571 is about 2545.8929671139. The cubic root of 6481571 is about 186.4490153814.

The spelling of 6481571 in words is "six million, four hundred eighty-one thousand, five hundred seventy-one".