13535913 has 4 divisors (see below), whose sum is σ = 18047888. Its totient is φ = 9023940.

The previous prime is 13535903. The next prime is 13535981. The reversal of 13535913 is 31953531.

13535913 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 13535913 - 2⁴ = 13535897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13535903) 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, 2255983 + ... + 2255988.

It is an arithmetic number, because the mean of its divisors is an integer number (4511972).

Almost surely, 2^13535913 is an apocalyptic number.

It is an amenable number.

13535913 is a deficient number, since it is larger than the sum of its proper divisors (4511975).

13535913 is an equidigital number, since it uses as much as digits as its factorization.

13535913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4511974.

The product of its digits is 6075, while the sum is 30.

The square root of 13535913 is about 3679.1185085561. The cubic root of 13535913 is about 238.3211128210.

The spelling of 13535913 in words is "thirteen million, five hundred thirty-five thousand, nine hundred thirteen".