6810161 has 2 divisors, whose sum is σ = 6810162. Its totient is φ = 6810160.

The previous prime is 6810143. The next prime is 6810169. The reversal of 6810161 is 1610186.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4389025 + 2421136 = 2095^2 + 1556^2 .

It is a cyclic number.

It is not a de Polignac number, because 6810161 - 2¹⁰ = 6809137 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (6810169) 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, 3405080 + 3405081.

It is an arithmetic number, because the mean of its divisors is an integer number (3405081).

Almost surely, 2^6810161 is an apocalyptic number.

It is an amenable number.

6810161 is a deficient number, since it is larger than the sum of its proper divisors (1).

6810161 is an equidigital number, since it uses as much as digits as its factorization.

6810161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 288, while the sum is 23.

The square root of 6810161 is about 2609.6285176247. The cubic root of 6810161 is about 189.5479651072.

The spelling of 6810161 in words is "six million, eight hundred ten thousand, one hundred sixty-one".