140711 has 4 divisors (see below), whose sum is σ = 144552. Its totient is φ = 136872.

The previous prime is 140689. The next prime is 140717. The reversal of 140711 is 117041.

It is a happy number.

140711 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-140711 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (140717) 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, 1865 + ... + 1938.

It is an arithmetic number, because the mean of its divisors is an integer number (36138).

2¹⁴⁰⁷¹¹ is an apocalyptic number.

140711 is a deficient number, since it is larger than the sum of its proper divisors (3841).

140711 is an equidigital number, since it uses as much as digits as its factorization.

140711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3840.

The product of its (nonzero) digits is 28, while the sum is 14.

The square root of 140711 is about 375.1146491408. The cubic root of 140711 is about 52.0126941395.

Adding to 140711 its reverse (117041), we get a palindrome (257752).

The spelling of 140711 in words is "one hundred forty thousand, seven hundred eleven", and thus it is an iban number.