12521152 has 56 divisors (see below), whose sum is σ = 29911040. Its totient is φ = 5080320.

The previous prime is 12521149. The next prime is 12521189. The reversal of 12521152 is 25112521.

12521152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 7777 + ... + 9247.

Almost surely, 2^12521152 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 12521152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14955520).

12521152 is an abundant number, since it is smaller than the sum of its proper divisors (17389888).

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

12521152 is a wasteful number, since it uses less digits than its factorization.

12521152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1509 (or 1499 counting only the distinct ones).

The product of its digits is 200, while the sum is 19.

The square root of 12521152 is about 3538.5239860710. The cubic root of 12521152 is about 232.2102730951.

Adding to 12521152 its reverse (25112521), we get a palindrome (37633673).

The spelling of 12521152 in words is "twelve million, five hundred twenty-one thousand, one hundred fifty-two".