6501241 has 2 divisors, whose sum is σ = 6501242. Its totient is φ = 6501240.

The previous prime is 6501239. The next prime is 6501251. The reversal of 6501241 is 1421056.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5861241 + 640000 = 2421^2 + 800^2 .

It is a cyclic number.

It is not a de Polignac number, because 6501241 - 2¹ = 6501239 is a prime.

It is a super-2 number, since 2×6501241² = 84532269080162, which contains 22 as substring.

Together with 6501239, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (6501221) 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, 3250620 + 3250621.

It is an arithmetic number, because the mean of its divisors is an integer number (3250621).

Almost surely, 2^6501241 is an apocalyptic number.

It is an amenable number.

6501241 is a deficient number, since it is larger than the sum of its proper divisors (1).

6501241 is an equidigital number, since it uses as much as digits as its factorization.

6501241 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 6501241 is about 2549.7531253045. The cubic root of 6501241 is about 186.6374341270.

Adding to 6501241 its reverse (1421056), we get a palindrome (7922297).

It can be divided in two parts, 650 and 1241, that added together give a triangular number (1891 = T₆₁).

The spelling of 6501241 in words is "six million, five hundred one thousand, two hundred forty-one".