13504135 has 16 divisors (see below), whose sum is σ = 16679520. Its totient is φ = 10491520.

The previous prime is 13504109. The next prime is 13504157. The reversal of 13504135 is 53140531.

It is a happy number.

13504135 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 13504135 - 2¹⁹ = 12979847 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34521 + ... + 34909.

It is an arithmetic number, because the mean of its divisors is an integer number (1042470).

Almost surely, 2^13504135 is an apocalyptic number.

13504135 is a deficient number, since it is larger than the sum of its proper divisors (3175385).

13504135 is a wasteful number, since it uses less digits than its factorization.

13504135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 578.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 13504135 is about 3674.7972733200. The cubic root of 13504135 is about 238.1344660667.

Adding to 13504135 its reverse (53140531), we get a palindrome (66644666).

The spelling of 13504135 in words is "thirteen million, five hundred four thousand, one hundred thirty-five".