13553345 has 8 divisors (see below), whose sum is σ = 17515176. Its totient is φ = 10008576.

The previous prime is 13553341. The next prime is 13553347. The reversal of 13553345 is 54335531.

It can be written as a sum of positive squares in 4 ways, for example, as 238144 + 13315201 = 488^2 + 3649^2 .

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 13553345 - 2² = 13553341 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13553341) 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, 104192 + ... + 104321.

It is an arithmetic number, because the mean of its divisors is an integer number (2189397).

Almost surely, 2^13553345 is an apocalyptic number.

It is an amenable number.

13553345 is a deficient number, since it is larger than the sum of its proper divisors (3961831).

13553345 is a wasteful number, since it uses less digits than its factorization.

13553345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208531.

The product of its digits is 13500, while the sum is 29.

The square root of 13553345 is about 3681.4867920448. The cubic root of 13553345 is about 238.4233748926.

Adding to 13553345 its reverse (54335531), we get a palindrome (67888876).

The spelling of 13553345 in words is "thirteen million, five hundred fifty-three thousand, three hundred forty-five".