12270641 has 2 divisors, whose sum is σ = 12270642. Its totient is φ = 12270640.

The previous prime is 12270631. The next prime is 12270647. The reversal of 12270641 is 14607221.

12270641 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., 9394225 + 2876416 = 3065^2 + 1696^2 .

It is an emirp because it is prime and its reverse (14607221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12270641 - 2¹⁸ = 12008497 is a prime.

It is not a weakly prime, because it can be changed into another prime (12270647) 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, 6135320 + 6135321.

It is an arithmetic number, because the mean of its divisors is an integer number (6135321).

Almost surely, 2^12270641 is an apocalyptic number.

It is an amenable number.

12270641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12270641 is an equidigital number, since it uses as much as digits as its factorization.

12270641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 12270641 is about 3502.9474732002. The cubic root of 12270641 is about 230.6512168011.

Adding to 12270641 its reverse (14607221), we get a palindrome (26877862).

The spelling of 12270641 in words is "twelve million, two hundred seventy thousand, six hundred forty-one".