12561208 has 32 divisors (see below), whose sum is σ = 25830000. Its totient is φ = 5679360.

The previous prime is 12561187. The next prime is 12561217. The reversal of 12561208 is 80216521.

It is a congruent number.

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, 30508 + ... + 30916.

Almost surely, 2^12561208 is an apocalyptic number.

It is an amenable number.

12561208 is an abundant number, since it is smaller than the sum of its proper divisors (13268792).

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

12561208 is a wasteful number, since it uses less digits than its factorization.

12561208 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775 (or 771 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 12561208 is about 3544.1794536959. The cubic root of 12561208 is about 232.4576282287.

Adding to 12561208 its reverse (80216521), we get a palindrome (92777729).

It can be divided in two parts, 12561 and 208, that added together give a square (12769 = 113²).

The spelling of 12561208 in words is "twelve million, five hundred sixty-one thousand, two hundred eight".