1530653603 has 2 divisors, whose sum is σ = 1530653604. Its totient is φ = 1530653602.

The previous prime is 1530653587. The next prime is 1530653609. The reversal of 1530653603 is 3063560351.

It is a strong prime.

It is an emirp because it is prime and its reverse (3063560351) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1530653603 - 2⁴ = 1530653587 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1530653603.

It is not a weakly prime, because it can be changed into another prime (1530653609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 765326801 + 765326802.

It is an arithmetic number, because the mean of its divisors is an integer number (765326802).

Almost surely, 2^1530653603 is an apocalyptic number.

1530653603 is a deficient number, since it is larger than the sum of its proper divisors (1).

1530653603 is an equidigital number, since it uses as much as digits as its factorization.

1530653603 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24300, while the sum is 32.

The square root of 1530653603 is about 39123.5683827536. The cubic root of 1530653603 is about 1152.4594127462.

The spelling of 1530653603 in words is "one billion, five hundred thirty million, six hundred fifty-three thousand, six hundred three".