12147504 has 40 divisors (see below), whose sum is σ = 31716720. Its totient is φ = 4005888.

The previous prime is 12147463. The next prime is 12147529. The reversal of 12147504 is 40574121.

12147504 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3352 + ... + 5960.

It is an arithmetic number, because the mean of its divisors is an integer number (792918).

Almost surely, 2^12147504 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 12147504, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15858360).

12147504 is an abundant number, since it is smaller than the sum of its proper divisors (19569216).

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

12147504 is a wasteful number, since it uses less digits than its factorization.

12147504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2717 (or 2711 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 24.

The square root of 12147504 is about 3485.3269574030. The cubic root of 12147504 is about 229.8770861844.

The spelling of 12147504 in words is "twelve million, one hundred forty-seven thousand, five hundred four".