1155530005 has 24 divisors (see below), whose sum is σ = 1683165312. Its totient is φ = 757909152.

The previous prime is 1155529997. The next prime is 1155530029. The reversal of 1155530005 is 5000355511.

It is not a de Polignac number, because 1155530005 - 2³ = 1155529997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 96897 + ... + 108166.

It is an arithmetic number, because the mean of its divisors is an integer number (70131888).

Almost surely, 2^1155530005 is an apocalyptic number.

It is an amenable number.

1155530005 is a deficient number, since it is larger than the sum of its proper divisors (527635307).

1155530005 is a wasteful number, since it uses less digits than its factorization.

1155530005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205105 (or 205098 counting only the distinct ones).

The product of its (nonzero) digits is 1875, while the sum is 25.

The square root of 1155530005 is about 33993.0876061590. The cubic root of 1155530005 is about 1049.3662101080.

Adding to 1155530005 its reverse (5000355511), we get a palindrome (6155885516).

The spelling of 1155530005 in words is "one billion, one hundred fifty-five million, five hundred thirty thousand, five".