13561912 has 48 divisors (see below), whose sum is σ = 31490640. Its totient is φ = 5361408.

The previous prime is 13561901. The next prime is 13561931. The reversal of 13561912 is 21916531.

13561912 is digitally balanced in base 2, because in such base 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 (28).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8748 + ... + 10180.

It is an arithmetic number, because the mean of its divisors is an integer number (656055).

Almost surely, 2^13561912 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 13561912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15745320).

13561912 is an abundant number, since it is smaller than the sum of its proper divisors (17928728).

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

13561912 is a wasteful number, since it uses less digits than its factorization.

13561912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1472 (or 1455 counting only the distinct ones).

The product of its digits is 1620, while the sum is 28.

The square root of 13561912 is about 3682.6501327169. The cubic root of 13561912 is about 238.4735997101.

The spelling of 13561912 in words is "thirteen million, five hundred sixty-one thousand, nine hundred twelve".