13521104 has 10 divisors (see below), whose sum is σ = 26197170. Its totient is φ = 6760544.

The previous prime is 13521097. The next prime is 13521107. The reversal of 13521104 is 40112531.

It can be written as a sum of positive squares in only one way, i.e., 11424400 + 2096704 = 3380^2 + 1448^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13521107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 422519 + ... + 422550.

It is an arithmetic number, because the mean of its divisors is an integer number (2619717).

Almost surely, 2^13521104 is an apocalyptic number.

It is an amenable number.

13521104 is a deficient number, since it is larger than the sum of its proper divisors (12676066).

13521104 is an equidigital number, since it uses as much as digits as its factorization.

13521104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845077 (or 845071 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 13521104 is about 3677.1053833144. The cubic root of 13521104 is about 238.2341691667.

Adding to 13521104 its reverse (40112531), we get a palindrome (53633635).

The spelling of 13521104 in words is "thirteen million, five hundred twenty-one thousand, one hundred four".