1118765945 has 16 divisors (see below), whose sum is σ = 1468359360. Its totient is φ = 811540800.

The previous prime is 1118765941. The next prime is 1118765983. The reversal of 1118765945 is 5495678111.

It is not a de Polignac number, because 1118765945 - 2² = 1118765941 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1118765945.

It is not an unprimeable number, because it can be changed into a prime (1118765941) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4751 + ... + 47540.

It is an arithmetic number, because the mean of its divisors is an integer number (91772460).

Almost surely, 2^1118765945 is an apocalyptic number.

It is an amenable number.

1118765945 is a deficient number, since it is larger than the sum of its proper divisors (349593415).

1118765945 is a wasteful number, since it uses less digits than its factorization.

1118765945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52696.

The product of its digits is 302400, while the sum is 47.

The square root of 1118765945 is about 33447.9587568509. The cubic root of 1118765945 is about 1038.1172621437.

The spelling of 1118765945 in words is "one billion, one hundred eighteen million, seven hundred sixty-five thousand, nine hundred forty-five".