13204735 has 4 divisors (see below), whose sum is σ = 15845688. Its totient is φ = 10563784.

The previous prime is 13204727. The next prime is 13204759. The reversal of 13204735 is 53740231.

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 13204735 - 2³ = 13204727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1320469 + ... + 1320478.

It is an arithmetic number, because the mean of its divisors is an integer number (3961422).

Almost surely, 2^13204735 is an apocalyptic number.

13204735 is a deficient number, since it is larger than the sum of its proper divisors (2640953).

13204735 is an equidigital number, since it uses as much as digits as its factorization.

13204735 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640952.

The product of its (nonzero) digits is 2520, while the sum is 25.

The square root of 13204735 is about 3633.8319994188. The cubic root of 13204735 is about 236.3614052371.

Adding to 13204735 its reverse (53740231), we get a palindrome (66944966).

The spelling of 13204735 in words is "thirteen million, two hundred four thousand, seven hundred thirty-five".