135816085 has 16 divisors (see below), whose sum is σ = 176198400. Its totient is φ = 100149696.

The previous prime is 135816049. The next prime is 135816091. The reversal of 135816085 is 580618531.

It is a cyclic number.

It is not a de Polignac number, because 135816085 - 2⁹ = 135815573 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (37).

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, 15805 + ... + 22834.

It is an arithmetic number, because the mean of its divisors is an integer number (11012400).

Almost surely, 2^135816085 is an apocalyptic number.

It is an amenable number.

135816085 is a deficient number, since it is larger than the sum of its proper divisors (40382315).

135816085 is a wasteful number, since it uses less digits than its factorization.

135816085 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38700.

The product of its (nonzero) digits is 28800, while the sum is 37.

The square root of 135816085 is about 11654.0158314634. The cubic root of 135816085 is about 514.0244011792.

The spelling of 135816085 in words is "one hundred thirty-five million, eight hundred sixteen thousand, eighty-five".