13521066 has 16 divisors (see below), whose sum is σ = 29122464. Its totient is φ = 4160304.

The previous prime is 13521061. The next prime is 13521073. The reversal of 13521066 is 66012531.

It is not an unprimeable number, because it can be changed into a prime (13521061) by changing a digit.

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, 86596 + ... + 86751.

It is an arithmetic number, because the mean of its divisors is an integer number (1820154).

Almost surely, 2^13521066 is an apocalyptic number.

13521066 is an abundant number, since it is smaller than the sum of its proper divisors (15601398).

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

13521066 is a wasteful number, since it uses less digits than its factorization.

13521066 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173365.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 13521066 is about 3677.1002162030. The cubic root of 13521066 is about 238.2339459870.

Adding to 13521066 its reverse (66012531), we get a palindrome (79533597).

The spelling of 13521066 in words is "thirteen million, five hundred twenty-one thousand, sixty-six".