13512224 has 48 divisors (see below), whose sum is σ = 30300480. Its totient is φ = 5871360.

The previous prime is 13512221. The next prime is 13512253. The reversal of 13512224 is 42221531.

It is a junction number, because it is equal to n+sod(n) for n = 13512196 and 13512205.

It is not an unprimeable number, because it can be changed into a prime (13512221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7262 + ... + 8930.

It is an arithmetic number, because the mean of its divisors is an integer number (631260).

Almost surely, 2^13512224 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 13512224, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (15150240).

13512224 is an abundant number, since it is smaller than the sum of its proper divisors (16788256).

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

13512224 is a wasteful number, since it uses less digits than its factorization.

13512224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713 (or 1705 counting only the distinct ones).

The product of its digits is 480, while the sum is 20.

The square root of 13512224 is about 3675.8977134844. The cubic root of 13512224 is about 238.1820042272.

Adding to 13512224 its reverse (42221531), we get a palindrome (55733755).

The spelling of 13512224 in words is "thirteen million, five hundred twelve thousand, two hundred twenty-four".