13535287 has 4 divisors (see below), whose sum is σ = 13592160. Its totient is φ = 13478416.

The previous prime is 13535243. The next prime is 13535311. The reversal of 13535287 is 78253531.

13535287 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 an emirpimes, since its reverse is a distinct semiprime: 78253531 = 3739 ⋅20929.

It is a cyclic number.

It is not a de Polignac number, because 13535287 - 2¹⁵ = 13502519 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13535237) 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, 28078 + ... + 28555.

It is an arithmetic number, because the mean of its divisors is an integer number (3398040).

Almost surely, 2^13535287 is an apocalyptic number.

13535287 is a deficient number, since it is larger than the sum of its proper divisors (56873).

13535287 is an equidigital number, since it uses as much as digits as its factorization.

13535287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56872.

The product of its digits is 25200, while the sum is 34.

The square root of 13535287 is about 3679.0334328462. The cubic root of 13535287 is about 238.3174388583.

The spelling of 13535287 in words is "thirteen million, five hundred thirty-five thousand, two hundred eighty-seven".