2000261 has 2 divisors, whose sum is σ = 2000262. Its totient is φ = 2000260.

The previous prime is 2000249. The next prime is 2000269. The reversal of 2000261 is 1620002.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1768900 + 231361 = 1330^2 + 481^2 .

It is a cyclic number.

It is not a de Polignac number, because 2000261 - 2¹⁸ = 1738117 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2000269) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1000130 + 1000131.

It is an arithmetic number, because the mean of its divisors is an integer number (1000131).

2^2000261 is an apocalyptic number.

It is an amenable number.

2000261 is a deficient number, since it is larger than the sum of its proper divisors (1).

2000261 is an equidigital number, since it uses as much as digits as its factorization.

2000261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 2000261 is about 1414.3058367977. The cubic root of 2000261 is about 125.9975854077.

Adding to 2000261 its reverse (1620002), we get a palindrome (3620263).

The spelling of 2000261 in words is "two million, two hundred sixty-one", and thus it is an aban number.