6499541 has 2 divisors, whose sum is σ = 6499542. Its totient is φ = 6499540.

The previous prime is 6499523. The next prime is 6499543. The reversal of 6499541 is 1459946.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4884100 + 1615441 = 2210^2 + 1271^2 .

It is a cyclic number.

It is not a de Polignac number, because 6499541 - 2¹⁸ = 6237397 is a prime.

It is a Sophie Germain prime.

Together with 6499543, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 6499495 and 6499504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (6499543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3249770 + 3249771.

It is an arithmetic number, because the mean of its divisors is an integer number (3249771).

Almost surely, 2^6499541 is an apocalyptic number.

It is an amenable number.

6499541 is a deficient number, since it is larger than the sum of its proper divisors (1).

6499541 is an equidigital number, since it uses as much as digits as its factorization.

6499541 is an evil number, because the sum of its binary digits is even.

The product of its digits is 38880, while the sum is 38.

The square root of 6499541 is about 2549.4197379012. The cubic root of 6499541 is about 186.6211648589.

The spelling of 6499541 in words is "six million, four hundred ninety-nine thousand, five hundred forty-one".