12090641 has 2 divisors, whose sum is σ = 12090642. Its totient is φ = 12090640.

The previous prime is 12090623. The next prime is 12090649. The reversal of 12090641 is 14609021.

It is a happy number.

12090641 is digitally balanced in base 2, 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., 10660225 + 1430416 = 3265^2 + 1196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12090641 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (12090649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6045320 + 6045321.

It is an arithmetic number, because the mean of its divisors is an integer number (6045321).

Almost surely, 2^12090641 is an apocalyptic number.

It is an amenable number.

12090641 is a deficient number, since it is larger than the sum of its proper divisors (1).

12090641 is an equidigital number, since it uses as much as digits as its factorization.

12090641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 12090641 is about 3477.1599042897. The cubic root of 12090641 is about 229.5178367987.

Adding to 12090641 its reverse (14609021), we get a palindrome (26699662).

The spelling of 12090641 in words is "twelve million, ninety thousand, six hundred forty-one".