1111448985 has 32 divisors (see below), whose sum is σ = 1878159360. Its totient is φ = 559700928.

The previous prime is 1111448959. The next prime is 1111449007. The reversal of 1111448985 is 5898441111.

It is not a de Polignac number, because 1111448985 - 2⁹ = 1111448473 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 81144 + ... + 93846.

It is an arithmetic number, because the mean of its divisors is an integer number (58692480).

Almost surely, 2^1111448985 is an apocalyptic number.

1111448985 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1111448985 is a deficient number, since it is larger than the sum of its proper divisors (766710375).

1111448985 is a wasteful number, since it uses less digits than its factorization.

1111448985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13037.

The product of its digits is 46080, while the sum is 42.

The square root of 1111448985 is about 33338.4010564394. The cubic root of 1111448985 is about 1035.8491432846.

The spelling of 1111448985 in words is "one billion, one hundred eleven million, four hundred forty-eight thousand, nine hundred eighty-five".