385135 has 16 divisors (see below), whose sum is σ = 513216. Its totient is φ = 275968.

The previous prime is 385129. The next prime is 385139. The reversal of 385135 is 531583.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 385135 - 2³ = 385127 is a prime.

It is a Duffinian number.

385135 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (385139) by changing a digit.

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, 1857 + ... + 2053.

It is an arithmetic number, because the mean of its divisors is an integer number (32076).

2³⁸⁵¹³⁵ is an apocalyptic number.

385135 is a deficient number, since it is larger than the sum of its proper divisors (128081).

385135 is a wasteful number, since it uses less digits than its factorization.

385135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242.

The product of its digits is 1800, while the sum is 25.

The square root of 385135 is about 620.5924588649. The cubic root of 385135 is about 72.7563654913.

The spelling of 385135 in words is "three hundred eighty-five thousand, one hundred thirty-five".