2010161 has 2 divisors, whose sum is σ = 2010162. Its totient is φ = 2010160.

The previous prime is 2010139. The next prime is 2010167. The reversal of 2010161 is 1610102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1739761 + 270400 = 1319^2 + 520^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2010161 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (2010167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005080 + 1005081.

It is an arithmetic number, because the mean of its divisors is an integer number (1005081).

2^2010161 is an apocalyptic number.

It is an amenable number.

2010161 is a deficient number, since it is larger than the sum of its proper divisors (1).

2010161 is an equidigital number, since it uses as much as digits as its factorization.

2010161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 2010161 is about 1417.8014670609. The cubic root of 2010161 is about 126.2051122976.

Adding to 2010161 its reverse (1610102), we get a palindrome (3620263).

It can be divided in two parts, 2010 and 161, that multiplied together give a triangular number (323610 = T₈₀₄).

The spelling of 2010161 in words is "two million, ten thousand, one hundred sixty-one".