12105133 has 2 divisors, whose sum is σ = 12105134. Its totient is φ = 12105132.

The previous prime is 12105131. The next prime is 12105143. The reversal of 12105133 is 33150121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12096484 + 8649 = 3478^2 + 93^2 .

It is an emirp because it is prime and its reverse (33150121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12105133 - 2¹ = 12105131 is a prime.

Together with 12105131, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12105131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6052566 + 6052567.

It is an arithmetic number, because the mean of its divisors is an integer number (6052567).

Almost surely, 2^12105133 is an apocalyptic number.

It is an amenable number.

12105133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12105133 is an equidigital number, since it uses as much as digits as its factorization.

12105133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 12105133 is about 3479.2431648277. The cubic root of 12105133 is about 229.6095012094.

Adding to 12105133 its reverse (33150121), we get a palindrome (45255254).

The spelling of 12105133 in words is "twelve million, one hundred five thousand, one hundred thirty-three".