12105601 has 2 divisors, whose sum is σ = 12105602. Its totient is φ = 12105600.

The previous prime is 12105563. The next prime is 12105607. The reversal of 12105601 is 10650121.

It is a happy number.

12105601 is digitally balanced in base 2 and base 3, because in such bases 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., 6350400 + 5755201 = 2520^2 + 2399^2 .

It is an emirp because it is prime and its reverse (10650121) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12105601 is a prime.

It is not a weakly prime, because it can be changed into another prime (12105607) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052800 + 6052801.

It is an arithmetic number, because the mean of its divisors is an integer number (6052801).

Almost surely, 2^12105601 is an apocalyptic number.

It is an amenable number.

12105601 is a deficient number, since it is larger than the sum of its proper divisors (1).

12105601 is an equidigital number, since it uses as much as digits as its factorization.

12105601 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 12105601 is about 3479.3104201839. The cubic root of 12105601 is about 229.6124601707.

Adding to 12105601 its reverse (10650121), we get a palindrome (22755722).

The spelling of 12105601 in words is "twelve million, one hundred five thousand, six hundred one".