143385 has 24 divisors (see below), whose sum is σ = 255360. Its totient is φ = 68640.

The previous prime is 143357. The next prime is 143387. The reversal of 143385 is 583341.

It is not a de Polignac number, because 143385 - 2⁷ = 143257 is a prime.

It is a Curzon number.

It is a nialpdrome in base 11.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 143385.

It is not an unprimeable number, because it can be changed into a prime (143387) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1776 + ... + 1854.

It is an arithmetic number, because the mean of its divisors is an integer number (10640).

2¹⁴³³⁸⁵ is an apocalyptic number.

143385 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

143385 is a deficient number, since it is larger than the sum of its proper divisors (111975).

143385 is a wasteful number, since it uses less digits than its factorization.

143385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109 (or 98 counting only the distinct ones).

The product of its digits is 1440, while the sum is 24.

The square root of 143385 is about 378.6621185173. The cubic root of 143385 is about 52.3401030726.

It can be divided in two parts, 143 and 385, that multiplied together give a palindrome (55055).

The spelling of 143385 in words is "one hundred forty-three thousand, three hundred eighty-five".