1121163859 has 8 divisors (see below), whose sum is σ = 1124742240. Its totient is φ = 1117592256.

The previous prime is 1121163829. The next prime is 1121163881. The reversal of 1121163859 is 9583611211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121163859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121163829) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 725842 + ... + 727384.

It is an arithmetic number, because the mean of its divisors is an integer number (140592780).

Almost surely, 2^1121163859 is an apocalyptic number.

1121163859 is a deficient number, since it is larger than the sum of its proper divisors (3578381).

1121163859 is a wasteful number, since it uses less digits than its factorization.

1121163859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3389.

The product of its digits is 12960, while the sum is 37.

The square root of 1121163859 is about 33483.7850160343. The cubic root of 1121163859 is about 1038.8584179221.

The spelling of 1121163859 in words is "one billion, one hundred twenty-one million, one hundred sixty-three thousand, eight hundred fifty-nine".