135816285 has 16 divisors (see below), whose sum is σ = 237061440. Its totient is φ = 65850240.

The previous prime is 135816259. The next prime is 135816293. The reversal of 135816285 is 582618531.

It is not a de Polignac number, because 135816285 - 2⁸ = 135816029 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 411400 + ... + 411729.

It is an arithmetic number, because the mean of its divisors is an integer number (14816340).

Almost surely, 2^135816285 is an apocalyptic number.

135816285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135816285 is a deficient number, since it is larger than the sum of its proper divisors (101245155).

135816285 is a wasteful number, since it uses less digits than its factorization.

135816285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 823148.

The product of its digits is 57600, while the sum is 39.

The square root of 135816285 is about 11654.0244121934. The cubic root of 135816285 is about 514.0246534931.

The spelling of 135816285 in words is "one hundred thirty-five million, eight hundred sixteen thousand, two hundred eighty-five".