1340071 has 2 divisors, whose sum is σ = 1340072. Its totient is φ = 1340070.

The previous prime is 1340069. The next prime is 1340083. The reversal of 1340071 is 1700431.

It is a weak prime.

It is an emirp because it is prime and its reverse (1700431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1340071 - 2¹ = 1340069 is a prime.

Together with 1340069, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340011) 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 as a sum of consecutive naturals, namely, 670035 + 670036.

It is an arithmetic number, because the mean of its divisors is an integer number (670036).

2^1340071 is an apocalyptic number.

1340071 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340071 is an equidigital number, since it uses as much as digits as its factorization.

1340071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 16.

The square root of 1340071 is about 1157.6143572019. The cubic root of 1340071 is about 110.2493242658.

The spelling of 1340071 in words is "one million, three hundred forty thousand, seventy-one".