1121896985 has 8 divisors (see below), whose sum is σ = 1468665216. Its totient is φ = 815925040.

The previous prime is 1121896957. The next prime is 1121897071. The reversal of 1121896985 is 5896981211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1121896985 - 2⁸ = 1121896729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10199009 + ... + 10199118.

It is an arithmetic number, because the mean of its divisors is an integer number (183583152).

Almost surely, 2^1121896985 is an apocalyptic number.

It is an amenable number.

1121896985 is a deficient number, since it is larger than the sum of its proper divisors (346768231).

1121896985 is a wasteful number, since it uses less digits than its factorization.

1121896985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20398143.

The product of its digits is 311040, while the sum is 50.

The square root of 1121896985 is about 33494.7307049930. The cubic root of 1121896985 is about 1039.0848041501.

The spelling of 1121896985 in words is "one billion, one hundred twenty-one million, eight hundred ninety-six thousand, nine hundred eighty-five".