13521046 has 32 divisors (see below), whose sum is σ = 26622720. Its totient is φ = 4989600.

The previous prime is 13521043. The next prime is 13521059. The reversal of 13521046 is 64012531.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13521043) 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 15 ways as a sum of consecutive naturals, for example, 616 + ... + 5236.

It is an arithmetic number, because the mean of its divisors is an integer number (831960).

Almost surely, 2^13521046 is an apocalyptic number.

13521046 is a deficient number, since it is larger than the sum of its proper divisors (13101674).

13521046 is a wasteful number, since it uses less digits than its factorization.

13521046 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4660.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 13521046 is about 3677.0974966677. The cubic root of 13521046 is about 238.2338285238.

Adding to 13521046 its reverse (64012531), we get a palindrome (77533577).

The spelling of 13521046 in words is "thirteen million, five hundred twenty-one thousand, forty-six".