12852121 has 2 divisors, whose sum is σ = 12852122. Its totient is φ = 12852120.

The previous prime is 12852109. The next prime is 12852137. The reversal of 12852121 is 12125821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12816400 + 35721 = 3580^2 + 189^2 .

It is a cyclic number.

It is not a de Polignac number, because 12852121 - 2¹¹ = 12850073 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12852092 and 12852101.

It is not a weakly prime, because it can be changed into another prime (12852421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6426060 + 6426061.

It is an arithmetic number, because the mean of its divisors is an integer number (6426061).

Almost surely, 2^12852121 is an apocalyptic number.

It is an amenable number.

12852121 is a deficient number, since it is larger than the sum of its proper divisors (1).

12852121 is an equidigital number, since it uses as much as digits as its factorization.

12852121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 320, while the sum is 22.

The square root of 12852121 is about 3584.9854950892. The cubic root of 12852121 is about 234.2384947577.

Adding to 12852121 its reverse (12125821), we get a palindrome (24977942).

The spelling of 12852121 in words is "twelve million, eight hundred fifty-two thousand, one hundred twenty-one".