12543408 has 30 divisors (see below), whose sum is σ = 35104524. Its totient is φ = 4181088.

The previous prime is 12543397. The next prime is 12543413. The reversal of 12543408 is 80434521.

12543408 is a `hidden beast` number, since 1 + 254 + 3 + 408 = 666.

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, 43410 + ... + 43697.

Almost surely, 2^12543408 is an apocalyptic number.

12543408 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

12543408 is an abundant number, since it is smaller than the sum of its proper divisors (22561116).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12543408 is a wasteful number, since it uses less digits than its factorization.

12543408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87121 (or 87112 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 12543408 is about 3541.6674039215. The cubic root of 12543408 is about 232.3477740967.

Adding to 12543408 its reverse (80434521), we get a palindrome (92977929).

The spelling of 12543408 in words is "twelve million, five hundred forty-three thousand, four hundred eight".