1115545005 has 96 divisors (see below), whose sum is σ = 2112739200. Its totient is φ = 542578176.

The previous prime is 1115544959. The next prime is 1115545009. The reversal of 1115545005 is 5005455111.

1115545005 is a `hidden beast` number, since 1 + 1 + 155 + 4 + 500 + 5 = 666.

It is not a de Polignac number, because 1115545005 - 2¹⁰ = 1115543981 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1115545005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115545009) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 5662567 + ... + 5662763.

It is an arithmetic number, because the mean of its divisors is an integer number (22007700).

Almost surely, 2^1115545005 is an apocalyptic number.

1115545005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1115545005 is a deficient number, since it is larger than the sum of its proper divisors (997194195).

1115545005 is a wasteful number, since it uses less digits than its factorization.

1115545005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 443 (or 440 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The square root of 1115545005 is about 33399.7755231978. The cubic root of 1115545005 is about 1037.1200540340.

The spelling of 1115545005 in words is "one billion, one hundred fifteen million, five hundred forty-five thousand, five".