1306339 has 2 divisors, whose sum is σ = 1306340. Its totient is φ = 1306338.

The previous prime is 1306313. The next prime is 1306343. The reversal of 1306339 is 9336031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1306339 - 2¹⁷ = 1175267 is a prime.

It is an Ulam number.

It is not a weakly prime, because it can be changed into another prime (1306139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653169 + 653170.

It is an arithmetic number, because the mean of its divisors is an integer number (653170).

2^1306339 is an apocalyptic number.

1306339 is a deficient number, since it is larger than the sum of its proper divisors (1).

1306339 is an equidigital number, since it uses as much as digits as its factorization.

1306339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 25.

The square root of 1306339 is about 1142.9518800020. The cubic root of 1306339 is about 109.3163940724.

The spelling of 1306339 in words is "one million, three hundred six thousand, three hundred thirty-nine".