12938225 has 12 divisors (see below), whose sum is σ = 16248960. Its totient is φ = 10218000.

The previous prime is 12938209. The next prime is 12938231. The reversal of 12938225 is 52283921.

It is a happy number.

It is not a de Polignac number, because 12938225 - 2⁴ = 12938209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12938191 and 12938200.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1301 + ... + 5250.

It is an arithmetic number, because the mean of its divisors is an integer number (1354080).

Almost surely, 2^12938225 is an apocalyptic number.

It is an amenable number.

12938225 is a deficient number, since it is larger than the sum of its proper divisors (3310735).

12938225 is an equidigital number, since it uses as much as digits as its factorization.

12938225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6640 (or 6635 counting only the distinct ones).

The product of its digits is 8640, while the sum is 32.

The square root of 12938225 is about 3596.9744230395. The cubic root of 12938225 is about 234.7604318803.

The spelling of 12938225 in words is "twelve million, nine hundred thirty-eight thousand, two hundred twenty-five".