13521268 has 6 divisors (see below), whose sum is σ = 23662226. Its totient is φ = 6760632.

The previous prime is 13521253. The next prime is 13521271. The reversal of 13521268 is 86212531.

13521268 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 only one way, i.e., 10381284 + 3139984 = 3222^2 + 1772^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1690155 + ... + 1690162.

Almost surely, 2^13521268 is an apocalyptic number.

It is an amenable number.

13521268 is a deficient number, since it is larger than the sum of its proper divisors (10140958).

13521268 is a wasteful number, since it uses less digits than its factorization.

13521268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3380321 (or 3380319 counting only the distinct ones).

The product of its digits is 2880, while the sum is 28.

The square root of 13521268 is about 3677.1276833964. The cubic root of 13521268 is about 238.2351323584.

Adding to 13521268 its reverse (86212531), we get a palindrome (99733799).

The spelling of 13521268 in words is "thirteen million, five hundred twenty-one thousand, two hundred sixty-eight".