12281141 has 2 divisors, whose sum is σ = 12281142. Its totient is φ = 12281140.

The previous prime is 12281131. The next prime is 12281161. The reversal of 12281141 is 14118221.

It is an a-pointer prime, because the next prime (12281161) can be obtained adding 12281141 to its sum of digits (20).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9891025 + 2390116 = 3145^2 + 1546^2 .

It is a cyclic number.

It is not a de Polignac number, because 12281141 - 2¹⁸ = 12018997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12281111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6140570 + 6140571.

It is an arithmetic number, because the mean of its divisors is an integer number (6140571).

Almost surely, 2^12281141 is an apocalyptic number.

It is an amenable number.

12281141 is a deficient number, since it is larger than the sum of its proper divisors (1).

12281141 is an equidigital number, since it uses as much as digits as its factorization.

12281141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 128, while the sum is 20.

The square root of 12281141 is about 3504.4458905796. The cubic root of 12281141 is about 230.7169875384.

Adding to 12281141 its reverse (14118221), we get a palindrome (26399362).

The spelling of 12281141 in words is "twelve million, two hundred eighty-one thousand, one hundred forty-one".