1115772845 has 16 divisors (see below), whose sum is σ = 1461438720. Its totient is φ = 811032000.

The previous prime is 1115772841. The next prime is 1115772857. The reversal of 1115772845 is 5482775111.

It is not a de Polignac number, because 1115772845 - 2² = 1115772841 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1115772841) 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, 124991 + ... + 133619.

It is an arithmetic number, because the mean of its divisors is an integer number (91339920).

Almost surely, 2^1115772845 is an apocalyptic number.

It is an amenable number.

1115772845 is a deficient number, since it is larger than the sum of its proper divisors (345665875).

1115772845 is a wasteful number, since it uses less digits than its factorization.

1115772845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10996.

The product of its digits is 78400, while the sum is 41.

The square root of 1115772845 is about 33403.1861504258. The cubic root of 1115772845 is about 1037.1906566981.

The spelling of 1115772845 in words is "one billion, one hundred fifteen million, seven hundred seventy-two thousand, eight hundred forty-five".