12825181 has 2 divisors, whose sum is σ = 12825182. Its totient is φ = 12825180.

The previous prime is 12825179. The next prime is 12825217. The reversal of 12825181 is 18152821.

12825181 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9180900 + 3644281 = 3030^2 + 1909^2 .

It is a cyclic number.

It is not a de Polignac number, because 12825181 - 2¹ = 12825179 is a prime.

It is a super-2 number, since 2×12825181² = 328970535365522, which contains 22 as substring.

Together with 12825179, 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 (12825581) 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, 6412590 + 6412591.

It is an arithmetic number, because the mean of its divisors is an integer number (6412591).

Almost surely, 2^12825181 is an apocalyptic number.

It is an amenable number.

12825181 is a deficient number, since it is larger than the sum of its proper divisors (1).

12825181 is an equidigital number, since it uses as much as digits as its factorization.

12825181 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1280, while the sum is 28.

The square root of 12825181 is about 3581.2261866573. The cubic root of 12825181 is about 234.0747137660.

The spelling of 12825181 in words is "twelve million, eight hundred twenty-five thousand, one hundred eighty-one".