12407245 has 4 divisors (see below), whose sum is σ = 14888700. Its totient is φ = 9925792.

The previous prime is 12407243. The next prime is 12407251. The reversal of 12407245 is 54270421.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3663396 + 8743849 = 1914^2 + 2957^2 .

It is a cyclic number.

It is not a de Polignac number, because 12407245 - 2¹ = 12407243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12407243) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1240720 + ... + 1240729.

It is an arithmetic number, because the mean of its divisors is an integer number (3722175).

Almost surely, 2^12407245 is an apocalyptic number.

It is an amenable number.

12407245 is a deficient number, since it is larger than the sum of its proper divisors (2481455).

12407245 is an equidigital number, since it uses as much as digits as its factorization.

12407245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2481454.

The product of its (nonzero) digits is 2240, while the sum is 25.

The square root of 12407245 is about 3522.3919429842. The cubic root of 12407245 is about 231.5039751645.

Adding to 12407245 its reverse (54270421), we get a palindrome (66677666).

The spelling of 12407245 in words is "twelve million, four hundred seven thousand, two hundred forty-five".