12388975 has 6 divisors (see below), whose sum is σ = 15362360. Its totient is φ = 9911160.

The previous prime is 12388967. The next prime is 12388991. The reversal of 12388975 is 57988321.

It is not a de Polignac number, because 12388975 - 2³ = 12388967 is a prime.

It is a congruent number.

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, 247755 + ... + 247804.

Almost surely, 2^12388975 is an apocalyptic number.

12388975 is a deficient number, since it is larger than the sum of its proper divisors (2973385).

12388975 is an equidigital number, since it uses as much as digits as its factorization.

12388975 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 495569 (or 495564 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 12388975 is about 3519.7975794071. The cubic root of 12388975 is about 231.3902874124.

It can be divided in two parts, 123 and 88975, that added together give a palindrome (89098).

The spelling of 12388975 in words is "twelve million, three hundred eighty-eight thousand, nine hundred seventy-five".