13521264 has 40 divisors (see below), whose sum is σ = 35747712. Its totient is φ = 4401600.

The previous prime is 13521253. The next prime is 13521271. The reversal of 13521264 is 46212531.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1212 + ... + 5339.

Almost surely, 2^13521264 is an apocalyptic number.

It is an amenable number.

13521264 is an abundant number, since it is smaller than the sum of its proper divisors (22226448).

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

13521264 is a wasteful number, since it uses less digits than its factorization.

13521264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6605 (or 6599 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 13521264 is about 3677.1271394935. The cubic root of 13521264 is about 238.2351088660.

Adding to 13521264 its reverse (46212531), we get a palindrome (59733795).

It can be divided in two parts, 135212 and 64, that multiplied together give a palindrome (8653568).

The spelling of 13521264 in words is "thirteen million, five hundred twenty-one thousand, two hundred sixty-four".