12561152 has 36 divisors (see below), whose sum is σ = 25325160. Its totient is φ = 6217728.

The previous prime is 12561139. The next prime is 12561163. The reversal of 12561152 is 25116521.

It is a happy number.

12561152 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35408 + ... + 35760.

Almost surely, 2^12561152 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 12561152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12662580).

12561152 is an abundant number, since it is smaller than the sum of its proper divisors (12764008).

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

12561152 is an equidigital number, since it uses as much as digits as its factorization.

12561152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 508 (or 494 counting only the distinct ones).

The product of its digits is 600, while the sum is 23.

The square root of 12561152 is about 3544.1715534099. The cubic root of 12561152 is about 232.4572827829.

Adding to 12561152 its reverse (25116521), we get a palindrome (37677673).

The spelling of 12561152 in words is "twelve million, five hundred sixty-one thousand, one hundred fifty-two".