12912504 has 64 divisors (see below), whose sum is σ = 35856000. Its totient is φ = 3841920.

The previous prime is 12912479. The next prime is 12912509. The reversal of 12912504 is 40521921.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12912509) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 15162 + ... + 15990.

It is an arithmetic number, because the mean of its divisors is an integer number (560250).

Almost surely, 2^12912504 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12912504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17928000).

12912504 is an abundant number, since it is smaller than the sum of its proper divisors (22943496).

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

12912504 is a wasteful number, since it uses less digits than its factorization.

12912504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 908 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 12912504 is about 3593.3972783426. The cubic root of 12912504 is about 234.6047619223.

The spelling of 12912504 in words is "twelve million, nine hundred twelve thousand, five hundred four".