1121194689 has 8 divisors (see below), whose sum is σ = 1495146432. Its totient is φ = 747353040.

The previous prime is 1121194631. The next prime is 1121194691. The reversal of 1121194689 is 9864911211.

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

It is not a de Polignac number, because 1121194689 - 2⁷ = 1121194561 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121194689.

It is not an unprimeable number, because it can be changed into a prime (1121194189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 244 + ... + 47354.

It is an arithmetic number, because the mean of its divisors is an integer number (186893304).

Almost surely, 2^1121194689 is an apocalyptic number.

It is an amenable number.

1121194689 is a deficient number, since it is larger than the sum of its proper divisors (373951743).

1121194689 is an equidigital number, since it uses as much as digits as its factorization.

1121194689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55047.

The product of its digits is 31104, while the sum is 42.

The square root of 1121194689 is about 33484.2453849568. The cubic root of 1121194689 is about 1038.8679400840.

The spelling of 1121194689 in words is "one billion, one hundred twenty-one million, one hundred ninety-four thousand, six hundred eighty-nine".