12080261 has 2 divisors, whose sum is σ = 12080262. Its totient is φ = 12080260.

The previous prime is 12080239. The next prime is 12080273. The reversal of 12080261 is 16208021.

12080261 is nontrivially palindromic in base 11.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10857025 + 1223236 = 3295^2 + 1106^2 .

It is a cyclic number.

It is not a de Polignac number, because 12080261 - 2⁶ = 12080197 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 (12080231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6040130 + 6040131.

It is an arithmetic number, because the mean of its divisors is an integer number (6040131).

Almost surely, 2^12080261 is an apocalyptic number.

It is an amenable number.

12080261 is a deficient number, since it is larger than the sum of its proper divisors (1).

12080261 is an equidigital number, since it uses as much as digits as its factorization.

12080261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 12080261 is about 3475.6669863495. Note that the first 3 decimals coincide. The cubic root of 12080261 is about 229.4521364705.

Adding to 12080261 its reverse (16208021), we get a palindrome (28288282).

The spelling of 12080261 in words is "twelve million, eighty thousand, two hundred sixty-one".