6816137 has 2 divisors, whose sum is σ = 6816138. Its totient is φ = 6816136.

The previous prime is 6816113. The next prime is 6816149. The reversal of 6816137 is 7316186.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6270016 + 546121 = 2504^2 + 739^2 .

It is a cyclic number.

It is not a de Polignac number, because 6816137 - 2¹⁴ = 6799753 is a prime.

It is not a weakly prime, because it can be changed into another prime (6816107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3408068 + 3408069.

It is an arithmetic number, because the mean of its divisors is an integer number (3408069).

Almost surely, 2^6816137 is an apocalyptic number.

It is an amenable number.

6816137 is a deficient number, since it is larger than the sum of its proper divisors (1).

6816137 is an equidigital number, since it uses as much as digits as its factorization.

6816137 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6048, while the sum is 32.

The square root of 6816137 is about 2610.7732571022. The cubic root of 6816137 is about 189.6033924542.

The spelling of 6816137 in words is "six million, eight hundred sixteen thousand, one hundred thirty-seven".