12478532 has 24 divisors (see below), whose sum is σ = 24276672. Its totient is φ = 5564000.

The previous prime is 12478519. The next prime is 12478541. The reversal of 12478532 is 23587421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344 + ... + 5007.

It is an arithmetic number, because the mean of its divisors is an integer number (1011528).

Almost surely, 2^12478532 is an apocalyptic number.

It is an amenable number.

12478532 is a deficient number, since it is larger than the sum of its proper divisors (11798140).

12478532 is a wasteful number, since it uses less digits than its factorization.

12478532 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5419 (or 5417 counting only the distinct ones).

The product of its digits is 13440, while the sum is 32.

The square root of 12478532 is about 3532.4965675850. The cubic root of 12478532 is about 231.9465047090.

Subtracting 12478532 from its reverse (23587421), we obtain a square (11108889 = 3333²).

It can be divided in two parts, 1247 and 8532, that added together give a palindrome (9779).

The spelling of 12478532 in words is "twelve million, four hundred seventy-eight thousand, five hundred thirty-two".