1530042539 has 2 divisors, whose sum is σ = 1530042540. Its totient is φ = 1530042538.

The previous prime is 1530042529. The next prime is 1530042571. The reversal of 1530042539 is 9352400351.

It is an a-pointer prime, because the next prime (1530042571) can be obtained adding 1530042539 to its sum of digits (32).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1530042539 is a prime.

It is a super-2 number, since 2×1530042539² = 4682060342299133042, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1530042529) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765021269 + 765021270.

It is an arithmetic number, because the mean of its divisors is an integer number (765021270).

Almost surely, 2^1530042539 is an apocalyptic number.

1530042539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530042539 is an equidigital number, since it uses as much as digits as its factorization.

1530042539 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 1530042539 is about 39115.7581928307. The cubic root of 1530042539 is about 1152.3060316043.

The spelling of 1530042539 in words is "one billion, five hundred thirty million, forty-two thousand, five hundred thirty-nine".