140985 has 24 divisors (see below), whose sum is σ = 264264. Its totient is φ = 69120.

The previous prime is 140983. The next prime is 140989. The reversal of 140985 is 589041.

140985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9216 + 131769 = 96^2 + 363^2 .

It is not a de Polignac number, because 140985 - 2¹ = 140983 is a prime.

It is a Curzon number.

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 140985.

It is not an unprimeable number, because it can be changed into a prime (140983) 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, 465 + ... + 705.

It is an arithmetic number, because the mean of its divisors is an integer number (11011).

2¹⁴⁰⁹⁸⁵ is an apocalyptic number.

140985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

140985 is a deficient number, since it is larger than the sum of its proper divisors (123279).

140985 is a wasteful number, since it uses less digits than its factorization.

140985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 265 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 140985 is about 375.4796931926. The cubic root of 140985 is about 52.0464328848.

The spelling of 140985 in words is "one hundred forty thousand, nine hundred eighty-five".