13211560 has 16 divisors (see below), whose sum is σ = 29726100. Its totient is φ = 5284608.

The previous prime is 13211551. The next prime is 13211573. The reversal of 13211560 is 6511231.

13211560 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 12630916 + 580644 = 3554^2 + 762^2 .

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, 165105 + ... + 165184.

Almost surely, 2^13211560 is an apocalyptic number.

13211560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13211560 is an abundant number, since it is smaller than the sum of its proper divisors (16514540).

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

13211560 is a wasteful number, since it uses less digits than its factorization.

13211560 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 330300 (or 330296 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 13211560 is about 3634.7709694010. The cubic root of 13211560 is about 236.4021201459.

Adding to 13211560 its reverse (6511231), we get a palindrome (19722791).

The spelling of 13211560 in words is "thirteen million, two hundred eleven thousand, five hundred sixty".