135023685 has 16 divisors (see below), whose sum is σ = 225431424. Its totient is φ = 68881472.

The previous prime is 135023659. The next prime is 135023687. The reversal of 135023685 is 586320531.

It is a cyclic number.

It is not a de Polignac number, because 135023685 - 2⁹ = 135023173 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135023687) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 195342 + ... + 196031.

It is an arithmetic number, because the mean of its divisors is an integer number (14089464).

Almost surely, 2^135023685 is an apocalyptic number.

135023685 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

135023685 is a deficient number, since it is larger than the sum of its proper divisors (90407739).

135023685 is a wasteful number, since it uses less digits than its factorization.

135023685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391404.

The product of its (nonzero) digits is 21600, while the sum is 33.

The square root of 135023685 is about 11619.9692340384. The cubic root of 135023685 is about 513.0227828267.

The spelling of 135023685 in words is "one hundred thirty-five million, twenty-three thousand, six hundred eighty-five".