1340459 has 2 divisors, whose sum is σ = 1340460. Its totient is φ = 1340458.

The previous prime is 1340447. The next prime is 1340477. The reversal of 1340459 is 9540431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1340459 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1340419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 670229 + 670230.

It is an arithmetic number, because the mean of its divisors is an integer number (670230).

2^1340459 is an apocalyptic number.

1340459 is a deficient number, since it is larger than the sum of its proper divisors (1).

1340459 is an equidigital number, since it uses as much as digits as its factorization.

1340459 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 1340459 is about 1157.7819311079. The cubic root of 1340459 is about 110.2599636548.

The spelling of 1340459 in words is "one million, three hundred forty thousand, four hundred fifty-nine".