12892129 has 2 divisors, whose sum is σ = 12892130. Its totient is φ = 12892128.

The previous prime is 12892093. The next prime is 12892181. The reversal of 12892129 is 92129821.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9734400 + 3157729 = 3120^2 + 1777^2 .

It is a cyclic number.

It is not a de Polignac number, because 12892129 - 2¹¹ = 12890081 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12892094 and 12892103.

It is not a weakly prime, because it can be changed into another prime (12892189) 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, 6446064 + 6446065.

It is an arithmetic number, because the mean of its divisors is an integer number (6446065).

Almost surely, 2^12892129 is an apocalyptic number.

It is an amenable number.

12892129 is a deficient number, since it is larger than the sum of its proper divisors (1).

12892129 is an equidigital number, since it uses as much as digits as its factorization.

12892129 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5184, while the sum is 34.

The square root of 12892129 is about 3590.5610982129. The cubic root of 12892129 is about 234.4813004973.

The spelling of 12892129 in words is "twelve million, eight hundred ninety-two thousand, one hundred twenty-nine".