12508427 has 4 divisors (see below), whose sum is σ = 12537360. Its totient is φ = 12479496.

The previous prime is 12508421. The next prime is 12508453. The reversal of 12508427 is 72480521.

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

It is a cyclic number.

It is not a de Polignac number, because 12508427 - 2¹⁰ = 12507403 is a prime.

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 12508427.

It is not an unprimeable number, because it can be changed into a prime (12508421) 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, 13808 + ... + 14685.

It is an arithmetic number, because the mean of its divisors is an integer number (3134340).

Almost surely, 2^12508427 is an apocalyptic number.

12508427 is a deficient number, since it is larger than the sum of its proper divisors (28933).

12508427 is an equidigital number, since it uses as much as digits as its factorization.

12508427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28932.

The product of its (nonzero) digits is 4480, while the sum is 29.

The square root of 12508427 is about 3536.7254629106. The cubic root of 12508427 is about 232.1315828574.

Adding to 12508427 its reverse (72480521), we get a palindrome (84988948).

The spelling of 12508427 in words is "twelve million, five hundred eight thousand, four hundred twenty-seven".