1340359 has 2 divisors, whose sum is σ = 1340360. Its totient is φ = 1340358.

The previous prime is 1340357. The next prime is 1340363. The reversal of 1340359 is 9530431.

It is a weak prime.

It is an emirp because it is prime and its reverse (9530431) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1340359 - 2¹ = 1340357 is a prime.

Together with 1340357, it forms a pair of twin primes.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1340357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670179 + 670180.

It is an arithmetic number, because the mean of its divisors is an integer number (670180).

2^1340359 is an apocalyptic number.

1340359 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340359 is an equidigital number, since it uses as much as digits as its factorization.

1340359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1340359 is about 1157.7387442770. The cubic root of 1340359 is about 110.2572217406.

The spelling of 1340359 in words is "one million, three hundred forty thousand, three hundred fifty-nine".