6481751 has 2 divisors, whose sum is σ = 6481752. Its totient is φ = 6481750.

The previous prime is 6481747. The next prime is 6481753. The reversal of 6481751 is 1571846.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 6481751 - 2² = 6481747 is a prime.

Together with 6481753, 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 (6481753) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3240875 + 3240876.

It is an arithmetic number, because the mean of its divisors is an integer number (3240876).

Almost surely, 2^6481751 is an apocalyptic number.

6481751 is a deficient number, since it is larger than the sum of its proper divisors (1).

6481751 is an equidigital number, since it uses as much as digits as its factorization.

6481751 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 6481751 is about 2545.9283179226. The cubic root of 6481751 is about 186.4507413268.

The spelling of 6481751 in words is "six million, four hundred eighty-one thousand, seven hundred fifty-one".