135502287 has 4 divisors (see below), whose sum is σ = 180669720. Its totient is φ = 90334856.

The previous prime is 135502273. The next prime is 135502309. The reversal of 135502287 is 782205531.

135502287 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.

It is a cyclic number.

It is not a de Polignac number, because 135502287 - 2¹⁰ = 135501263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135502247) 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, 22583712 + ... + 22583717.

It is an arithmetic number, because the mean of its divisors is an integer number (45167430).

Almost surely, 2^135502287 is an apocalyptic number.

135502287 is a deficient number, since it is larger than the sum of its proper divisors (45167433).

135502287 is an equidigital number, since it uses as much as digits as its factorization.

135502287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45167432.

The product of its (nonzero) digits is 16800, while the sum is 33.

The square root of 135502287 is about 11640.5449614698. The cubic root of 135502287 is about 513.6282178296.

The spelling of 135502287 in words is "one hundred thirty-five million, five hundred two thousand, two hundred eighty-seven".