1155305964 has 48 divisors (see below), whose sum is σ = 2729801088. Its totient is φ = 380256768.

The previous prime is 1155305959. The next prime is 1155306017. The reversal of 1155305964 is 4695035511.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 444252 + ... + 446844.

It is an arithmetic number, because the mean of its divisors is an integer number (56870856).

Almost surely, 2^1155305964 is an apocalyptic number.

It is an amenable number.

1155305964 is an abundant number, since it is smaller than the sum of its proper divisors (1574495124).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1155305964 is a wasteful number, since it uses less digits than its factorization.

1155305964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3054 (or 3052 counting only the distinct ones).

The product of its (nonzero) digits is 81000, while the sum is 39.

The square root of 1155305964 is about 33989.7920558511. The cubic root of 1155305964 is about 1049.2983866129.

The spelling of 1155305964 in words is "one billion, one hundred fifty-five million, three hundred five thousand, nine hundred sixty-four".