13505343 has 4 divisors (see below), whose sum is σ = 18007128. Its totient is φ = 9003560.

The previous prime is 13505321. The next prime is 13505353. The reversal of 13505343 is 34350531.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13505343 - 2¹⁶ = 13439807 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13505353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2250888 + ... + 2250893.

It is an arithmetic number, because the mean of its divisors is an integer number (4501782).

Almost surely, 2^13505343 is an apocalyptic number.

13505343 is a deficient number, since it is larger than the sum of its proper divisors (4501785).

13505343 is an equidigital number, since it uses as much as digits as its factorization.

13505343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4501784.

The product of its (nonzero) digits is 2700, while the sum is 24.

The square root of 13505343 is about 3674.9616324528. The cubic root of 13505343 is about 238.1415665550.

Adding to 13505343 its reverse (34350531), we get a palindrome (47855874).

The spelling of 13505343 in words is "thirteen million, five hundred five thousand, three hundred forty-three".