12407225 has 6 divisors (see below), whose sum is σ = 15384990. Its totient is φ = 9925760.

The previous prime is 12407221. The next prime is 12407233. The reversal of 12407225 is 52270421.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 241081 + 12166144 = 491^2 + 3488^2 .

It is not a de Polignac number, because 12407225 - 2² = 12407221 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12407225.

It is not an unprimeable number, because it can be changed into a prime (12407221) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 248120 + ... + 248169.

It is an arithmetic number, because the mean of its divisors is an integer number (2564165).

Almost surely, 2^12407225 is an apocalyptic number.

It is an amenable number.

12407225 is a deficient number, since it is larger than the sum of its proper divisors (2977765).

12407225 is an equidigital number, since it uses as much as digits as its factorization.

12407225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496299 (or 496294 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 23.

The square root of 12407225 is about 3522.3891040031. The cubic root of 12407225 is about 231.5038507726.

Adding to 12407225 its reverse (52270421), we get a palindrome (64677646).

The spelling of 12407225 in words is "twelve million, four hundred seven thousand, two hundred twenty-five".