1307539 has 2 divisors, whose sum is σ = 1307540. Its totient is φ = 1307538.

The previous prime is 1307519. The next prime is 1307557. The reversal of 1307539 is 9357031.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1307539 - 2⁵ = 1307507 is a prime.

It is a Chen prime.

1307539 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1307519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 653769 + 653770.

It is an arithmetic number, because the mean of its divisors is an integer number (653770).

2^1307539 is an apocalyptic number.

1307539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1307539 is an equidigital number, since it uses as much as digits as its factorization.

1307539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2835, while the sum is 28.

The square root of 1307539 is about 1143.4767159851. The cubic root of 1307539 is about 109.3498564244.

The spelling of 1307539 in words is "one million, three hundred seven thousand, five hundred thirty-nine".