1530740839 has 2 divisors, whose sum is σ = 1530740840. Its totient is φ = 1530740838.

The previous prime is 1530740831. The next prime is 1530740903. The reversal of 1530740839 is 9380470351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1530740839 - 2³ = 1530740831 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530740831) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765370419 + 765370420.

It is an arithmetic number, because the mean of its divisors is an integer number (765370420).

Almost surely, 2^1530740839 is an apocalyptic number.

1530740839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530740839 is an equidigital number, since it uses as much as digits as its factorization.

1530740839 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The square root of 1530740839 is about 39124.6832447242. The cubic root of 1530740839 is about 1152.4813062343.

The spelling of 1530740839 in words is "one billion, five hundred thirty million, seven hundred forty thousand, eight hundred thirty-nine".