12260581 has 2 divisors, whose sum is σ = 12260582. Its totient is φ = 12260580.

The previous prime is 12260539. The next prime is 12260603. The reversal of 12260581 is 18506221.

12260581 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6548481 + 5712100 = 2559^2 + 2390^2 .

It is a cyclic number.

It is not a de Polignac number, because 12260581 - 2¹³ = 12252389 is a prime.

It is a super-2 number, since 2×12260581² = 300643692915122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12260981) 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, 6130290 + 6130291.

It is an arithmetic number, because the mean of its divisors is an integer number (6130291).

Almost surely, 2^12260581 is an apocalyptic number.

It is an amenable number.

12260581 is a deficient number, since it is larger than the sum of its proper divisors (1).

12260581 is an equidigital number, since it uses as much as digits as its factorization.

12260581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12260581 is about 3501.5112451626. The cubic root of 12260581 is about 230.5881669670.

The spelling of 12260581 in words is "twelve million, two hundred sixty thousand, five hundred eighty-one".