6480191 has 2 divisors, whose sum is σ = 6480192. Its totient is φ = 6480190.

The previous prime is 6480167. The next prime is 6480193. The reversal of 6480191 is 1910846.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6480191 - 2⁶ = 6480127 is a prime.

It is a Sophie Germain prime.

Together with 6480193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6480193) 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, 3240095 + 3240096.

It is an arithmetic number, because the mean of its divisors is an integer number (3240096).

Almost surely, 2^6480191 is an apocalyptic number.

6480191 is a deficient number, since it is larger than the sum of its proper divisors (1).

6480191 is an equidigital number, since it uses as much as digits as its factorization.

6480191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 6480191 is about 2545.6219279382. The cubic root of 6480191 is about 186.4357820720.

The spelling of 6480191 in words is "six million, four hundred eighty thousand, one hundred ninety-one".