12507237 has 8 divisors (see below), whose sum is σ = 18529280. Its totient is φ = 8338140.

The previous prime is 12507203. The next prime is 12507241. The reversal of 12507237 is 73270521.

12507237 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12507237 - 2¹¹ = 12505189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 463231 = 12507237 / (1 + 2 + 5 + 0 + 7 + 2 + 3 + 7).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12507237.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12507247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231589 + ... + 231642.

It is an arithmetic number, because the mean of its divisors is an integer number (2316160).

Almost surely, 2^12507237 is an apocalyptic number.

It is an amenable number.

12507237 is a deficient number, since it is larger than the sum of its proper divisors (6022043).

12507237 is an equidigital number, since it uses as much as digits as its factorization.

12507237 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463240 (or 463234 counting only the distinct ones).

The product of its (nonzero) digits is 2940, while the sum is 27.

The square root of 12507237 is about 3536.5572241942. The cubic root of 12507237 is about 232.1242212777.

Adding to 12507237 its reverse (73270521), we get a palindrome (85777758).

The spelling of 12507237 in words is "twelve million, five hundred seven thousand, two hundred thirty-seven".