1530728875 has 32 divisors (see below), whose sum is σ = 2178356544. Its totient is φ = 1063872000.

The previous prime is 1530728861. The next prime is 1530728951. The reversal of 1530728875 is 5788270351.

It is not a de Polignac number, because 1530728875 - 2⁹ = 1530728363 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81 + ... + 55330.

It is an arithmetic number, because the mean of its divisors is an integer number (68073642).

Almost surely, 2^1530728875 is an apocalyptic number.

1530728875 is a deficient number, since it is larger than the sum of its proper divisors (647627669).

1530728875 is a wasteful number, since it uses less digits than its factorization.

1530728875 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55456 (or 55446 counting only the distinct ones).

The product of its (nonzero) digits is 470400, while the sum is 46.

The square root of 1530728875 is about 39124.5303486189. The cubic root of 1530728875 is about 1152.4783036964.

The spelling of 1530728875 in words is "one billion, five hundred thirty million, seven hundred twenty-eight thousand, eight hundred seventy-five".