13522447 has 8 divisors (see below), whose sum is σ = 13906080. Its totient is φ = 13144320.

The previous prime is 13522391. The next prime is 13522451. The reversal of 13522447 is 74422531.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13522447 - 2²³ = 5133839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13522477) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3879 + ... + 6487.

It is an arithmetic number, because the mean of its divisors is an integer number (1738260).

Almost surely, 2^13522447 is an apocalyptic number.

13522447 is a deficient number, since it is larger than the sum of its proper divisors (383633).

13522447 is an equidigital number, since it uses as much as digits as its factorization.

13522447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2753.

The product of its digits is 6720, while the sum is 28.

The square root of 13522447 is about 3677.2879952487. The cubic root of 13522447 is about 238.2420565378.

Adding to 13522447 its reverse (74422531), we get a palindrome (87944978).

The spelling of 13522447 in words is "thirteen million, five hundred twenty-two thousand, four hundred forty-seven".