12907225 has 12 divisors (see below), whose sum is σ = 16187580. Its totient is φ = 10208000.

The previous prime is 12907217. The next prime is 12907229. The reversal of 12907225 is 52270921.

12907225 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 4761 + 12902464 = 69^2 + 3592^2 .

It is not a de Polignac number, because 12907225 - 2³ = 12907217 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12907193 and 12907202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12907229) 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 in 11 ways as a sum of consecutive naturals, for example, 676 + ... + 5125.

It is an arithmetic number, because the mean of its divisors is an integer number (1348965).

Almost surely, 2^12907225 is an apocalyptic number.

It is an amenable number.

12907225 is a deficient number, since it is larger than the sum of its proper divisors (3280355).

12907225 is an equidigital number, since it uses as much as digits as its factorization.

12907225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5900 (or 5895 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 28.

The square root of 12907225 is about 3592.6626615924. The cubic root of 12907225 is about 234.5727865246.

It can be divided in two parts, 1290 and 7225, that added together give a triangular number (8515 = T₁₃₀).

The spelling of 12907225 in words is "twelve million, nine hundred seven thousand, two hundred twenty-five".