140785 has 8 divisors (see below), whose sum is σ = 173736. Its totient is φ = 109440.

The previous prime is 140779. The next prime is 140797. The reversal of 140785 is 587041.

140785 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 4624 + 136161 = 68^2 + 369^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-140785 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 196 + ... + 565.

It is an arithmetic number, because the mean of its divisors is an integer number (21717).

2¹⁴⁰⁷⁸⁵ is an apocalyptic number.

It is an amenable number.

140785 is a deficient number, since it is larger than the sum of its proper divisors (32951).

140785 is an equidigital number, since it uses as much as digits as its factorization.

140785 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 803.

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 140785 is about 375.2132726863. The cubic root of 140785 is about 52.0218103774.

The spelling of 140785 in words is "one hundred forty thousand, seven hundred eighty-five".