140791 has 4 divisors (see below), whose sum is σ = 160912. Its totient is φ = 120672.

The previous prime is 140779. The next prime is 140797. The reversal of 140791 is 197041.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 140791 - 2⁵ = 140759 is a prime.

It is a Duffinian number.

140791 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140797) 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 3 ways as a sum of consecutive naturals, for example, 10050 + ... + 10063.

It is an arithmetic number, because the mean of its divisors is an integer number (40228).

2¹⁴⁰⁷⁹¹ is an apocalyptic number.

140791 is a deficient number, since it is larger than the sum of its proper divisors (20121).

140791 is an equidigital number, since it uses as much as digits as its factorization.

140791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20120.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 140791 is about 375.2212680539. The cubic root of 140791 is about 52.0225493918.

The spelling of 140791 in words is "one hundred forty thousand, seven hundred ninety-one".