13535539 has 4 divisors (see below), whose sum is σ = 13667056. Its totient is φ = 13404024.

The previous prime is 13535537. The next prime is 13535549. The reversal of 13535539 is 93553531.

13535539 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 a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93553531 = 1879 ⋅49789.

It is a cyclic number.

It is not a de Polignac number, because 13535539 - 2¹ = 13535537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13535537) 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, 65604 + ... + 65809.

It is an arithmetic number, because the mean of its divisors is an integer number (3416764).

Almost surely, 2^13535539 is an apocalyptic number.

13535539 is a deficient number, since it is larger than the sum of its proper divisors (131517).

13535539 is a wasteful number, since it uses less digits than its factorization.

13535539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131516.

The product of its digits is 30375, while the sum is 34.

The square root of 13535539 is about 3679.0676808126. The cubic root of 13535539 is about 238.3189178473.

The spelling of 13535539 in words is "thirteen million, five hundred thirty-five thousand, five hundred thirty-nine".