1155040705 has 32 divisors (see below), whose sum is σ = 1708084224. Its totient is φ = 730169856.

The previous prime is 1155040697. The next prime is 1155040717. The reversal of 1155040705 is 5070405511.

It is not a de Polignac number, because 1155040705 - 2³ = 1155040697 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 602829 + ... + 604741.

It is an arithmetic number, because the mean of its divisors is an integer number (53377632).

Almost surely, 2^1155040705 is an apocalyptic number.

It is an amenable number.

1155040705 is a deficient number, since it is larger than the sum of its proper divisors (553043519).

1155040705 is a wasteful number, since it uses less digits than its factorization.

1155040705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3265.

The product of its (nonzero) digits is 3500, while the sum is 28.

The square root of 1155040705 is about 33985.8897926772. The cubic root of 1155040705 is about 1049.2180739355.

The spelling of 1155040705 in words is "one billion, one hundred fifty-five million, forty thousand, seven hundred five".