1530604135789 has 2 divisors, whose sum is σ = 1530604135790. Its totient is φ = 1530604135788.

The previous prime is 1530604135747. The next prime is 1530604135799. The reversal of 1530604135789 is 9875314060351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1524587806564 + 6016329225 = 1234742^2 + 77565^2 .

It is an emirp because it is prime and its reverse (9875314060351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1530604135789 - 2⁷ = 1530604135661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1530604135799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765302067894 + 765302067895.

It is an arithmetic number, because the mean of its divisors is an integer number (765302067895).

Almost surely, 2^{1530604135789} is an apocalyptic number.

It is an amenable number.

1530604135789 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530604135789 is an equidigital number, since it uses as much as digits as its factorization.

1530604135789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2721600, while the sum is 52.

The spelling of 1530604135789 in words is "one trillion, five hundred thirty billion, six hundred four million, one hundred thirty-five thousand, seven hundred eighty-nine".