12537424 has 20 divisors (see below), whose sum is σ = 24857536. Its totient is φ = 6122592.

The previous prime is 12537419. The next prime is 12537443. The reversal of 12537424 is 42473521.

It is a junction number, because it is equal to n+sod(n) for n = 12537392 and 12537401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8424 + ... + 9799.

Almost surely, 2^12537424 is an apocalyptic number.

It is an amenable number.

12537424 is a deficient number, since it is larger than the sum of its proper divisors (12320112).

12537424 is a wasteful number, since it uses less digits than its factorization.

12537424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18274 (or 18268 counting only the distinct ones).

The product of its digits is 6720, while the sum is 28.

The square root of 12537424 is about 3540.8225033176. The cubic root of 12537424 is about 232.3108200186.

The spelling of 12537424 in words is "twelve million, five hundred thirty-seven thousand, four hundred twenty-four".