1115218885 has 48 divisors (see below), whose sum is σ = 1513008000. Its totient is φ = 788261760.

The previous prime is 1115218879. The next prime is 1115218913. The reversal of 1115218885 is 5888125111.

It is not a de Polignac number, because 1115218885 - 2¹⁵ = 1115186117 is a prime.

It is a super-2 number, since 2×1115218885² = 2487426322921286450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5604016 + ... + 5604214.

It is an arithmetic number, because the mean of its divisors is an integer number (31521000).

Almost surely, 2^1115218885 is an apocalyptic number.

It is an amenable number.

1115218885 is a deficient number, since it is larger than the sum of its proper divisors (397789115).

1115218885 is a wasteful number, since it uses less digits than its factorization.

1115218885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 442 (or 431 counting only the distinct ones).

The product of its digits is 25600, while the sum is 40.

The square root of 1115218885 is about 33394.8930975980. The cubic root of 1115218885 is about 1037.0189798042.

The spelling of 1115218885 in words is "one billion, one hundred fifteen million, two hundred eighteen thousand, eight hundred eighty-five".