12031225 has 6 divisors (see below), whose sum is σ = 14918750. Its totient is φ = 9624960.

The previous prime is 12031219. The next prime is 12031247. The reversal of 12031225 is 52213021.

It can be written as a sum of positive squares in 3 ways, for example, as 114921 + 11916304 = 339^2 + 3452^2 .

It is not a de Polignac number, because 12031225 - 2²¹ = 9934073 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12031199 and 12031208.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 240600 + ... + 240649.

Almost surely, 2^12031225 is an apocalyptic number.

It is an amenable number.

12031225 is a deficient number, since it is larger than the sum of its proper divisors (2887525).

12031225 is an equidigital number, since it uses as much as digits as its factorization.

12031225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481259 (or 481254 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 12031225 is about 3468.6056276262. The cubic root of 12031225 is about 229.1412526455.

Adding to 12031225 its reverse (52213021), we get a palindrome (64244246).

The spelling of 12031225 in words is "twelve million, thirty-one thousand, two hundred twenty-five".