1530500661 has 48 divisors (see below), whose sum is σ = 2350857600. Its totient is φ = 957534336.

The previous prime is 1530500627. The next prime is 1530500669. The reversal of 1530500661 is 1660050351.

It is a happy number.

1530500661 is a `hidden beast` number, since 153 + 0 + 500 + 6 + 6 + 1 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-1530500661 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530500669) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 3934255 + ... + 3934643.

It is an arithmetic number, because the mean of its divisors is an integer number (48976200).

Almost surely, 2^1530500661 is an apocalyptic number.

It is an amenable number.

1530500661 is a deficient number, since it is larger than the sum of its proper divisors (820356939).

1530500661 is a wasteful number, since it uses less digits than its factorization.

1530500661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 730 (or 727 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The square root of 1530500661 is about 39121.6137320535. The cubic root of 1530500661 is about 1152.4210271141.

The spelling of 1530500661 in words is "one billion, five hundred thirty million, five hundred thousand, six hundred sixty-one".