12543375 has 64 divisors (see below), whose sum is σ = 23482368. Its totient is φ = 5904000.

The previous prime is 12543367. The next prime is 12543379. The reversal of 12543375 is 57334521.

It is not a de Polignac number, because 12543375 - 2³ = 12543367 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12543379) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 151084 + ... + 151166.

It is an arithmetic number, because the mean of its divisors is an integer number (366912).

Almost surely, 2^12543375 is an apocalyptic number.

12543375 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

12543375 is a deficient number, since it is larger than the sum of its proper divisors (10938993).

12543375 is a wasteful number, since it uses less digits than its factorization.

12543375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145 (or 135 counting only the distinct ones).

The product of its digits is 12600, while the sum is 30.

The square root of 12543375 is about 3541.6627450959. The cubic root of 12543375 is about 232.3475703381.

Adding to 12543375 its reverse (57334521), we get a palindrome (69877896).

The spelling of 12543375 in words is "twelve million, five hundred forty-three thousand, three hundred seventy-five".