140789 has 4 divisors (see below), whose sum is σ = 153600. Its totient is φ = 127980.

The previous prime is 140779. The next prime is 140797. The reversal of 140789 is 987041.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 140789 - 2⁴ = 140773 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6389 + ... + 6410.

It is an arithmetic number, because the mean of its divisors is an integer number (38400).

2¹⁴⁰⁷⁸⁹ is an apocalyptic number.

It is an amenable number.

140789 is a deficient number, since it is larger than the sum of its proper divisors (12811).

140789 is a wasteful number, since it uses less digits than its factorization.

140789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12810.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 140789 is about 375.2186029503. The cubic root of 140789 is about 52.0223030560.

It can be divided in two parts, 140 and 789, that added together give a palindrome (929).

The spelling of 140789 in words is "one hundred forty thousand, seven hundred eighty-nine".