12886925 has 6 divisors (see below), whose sum is σ = 15979818. Its totient is φ = 10309520.

The previous prime is 12886919. The next prime is 12886927. The reversal of 12886925 is 52968821.

It can be written as a sum of positive squares in 3 ways, for example, as 170569 + 12716356 = 413^2 + 3566^2 .

It is not a de Polignac number, because 12886925 - 2¹⁴ = 12870541 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12886927) 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 in 5 ways as a sum of consecutive naturals, for example, 257714 + ... + 257763.

It is an arithmetic number, because the mean of its divisors is an integer number (2663303).

Almost surely, 2^12886925 is an apocalyptic number.

It is an amenable number.

12886925 is a deficient number, since it is larger than the sum of its proper divisors (3092893).

12886925 is an equidigital number, since it uses as much as digits as its factorization.

12886925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 515487 (or 515482 counting only the distinct ones).

The product of its digits is 69120, while the sum is 41.

The square root of 12886925 is about 3589.8363472448. The cubic root of 12886925 is about 234.4497462337.

The spelling of 12886925 in words is "twelve million, eight hundred eighty-six thousand, nine hundred twenty-five".