12892225 has 12 divisors (see below), whose sum is σ = 16098300. Its totient is φ = 10241600.

The previous prime is 12892219. The next prime is 12892237. The reversal of 12892225 is 52229821.

It can be written as a sum of positive squares in 6 ways, for example, as 3207681 + 9684544 = 1791^2 + 3112^2 .

It is not a de Polignac number, because 12892225 - 2⁹ = 12891713 is a prime.

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, 1995 + ... + 5455.

It is an arithmetic number, because the mean of its divisors is an integer number (1341525).

Almost surely, 2^12892225 is an apocalyptic number.

It is an amenable number.

12892225 is a deficient number, since it is larger than the sum of its proper divisors (3206075).

12892225 is a wasteful number, since it uses less digits than its factorization.

12892225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3620 (or 3615 counting only the distinct ones).

The product of its digits is 5760, while the sum is 31.

The square root of 12892225 is about 3590.5744665722. The cubic root of 12892225 is about 234.4818825100.

The spelling of 12892225 in words is "twelve million, eight hundred ninety-two thousand, two hundred twenty-five".