1530839 has 2 divisors, whose sum is σ = 1530840. Its totient is φ = 1530838.

The previous prime is 1530829. The next prime is 1530847. The reversal of 1530839 is 9380351.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1530839 - 2²⁰ = 482263 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765419 + 765420.

It is an arithmetic number, because the mean of its divisors is an integer number (765420).

2^1530839 is an apocalyptic number.

1530839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530839 is an equidigital number, since it uses as much as digits as its factorization.

1530839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 1530839 is about 1237.2707868531. The cubic root of 1530839 is about 115.2505940559.

The spelling of 1530839 in words is "one million, five hundred thirty thousand, eight hundred thirty-nine".