140071 has 2 divisors, whose sum is σ = 140072. Its totient is φ = 140070.
The previous prime is 140069. The next prime is 140111. The reversal of 140071 is 170041.
It is a weak prime.
It is a cyclic number.
It is not a de Polignac number, because 140071 - 21 = 140069 is a prime.
Together with 140069, it forms a pair of twin primes.
It is a Chen prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (140171) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 70035 + 70036.
It is an arithmetic number, because the mean of its divisors is an integer number (70036).
2140071 is an apocalyptic number.
140071 is a deficient number, since it is larger than the sum of its proper divisors (1).
140071 is an equidigital number, since it uses as much as digits as its factorization.
140071 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 28, while the sum is 13.
The square root of 140071 is about 374.2606043922. The cubic root of 140071 is about 51.9337173227.
The spelling of 140071 in words is "one hundred forty thousand, seventy-one", and thus it is an iban number.
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