1189009852 has 12 divisors (see below), whose sum is σ = 2203165440. Its totient is φ = 559534016.

The previous prime is 1189009819. The next prime is 1189009853. The reversal of 1189009852 is 2589009811.

It is a junction number, because it is equal to n+sod(n) for n = 1189009799 and 1189009808.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1189009853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8742652 + ... + 8742787.

It is an arithmetic number, because the mean of its divisors is an integer number (183597120).

Almost surely, 2^1189009852 is an apocalyptic number.

It is an amenable number.

1189009852 is a deficient number, since it is larger than the sum of its proper divisors (1014155588).

1189009852 is a wasteful number, since it uses less digits than its factorization.

1189009852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17485460 (or 17485458 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 43.

The square root of 1189009852 is about 34482.0221564803. The cubic root of 1189009852 is about 1059.4045106678.

The spelling of 1189009852 in words is "one billion, one hundred eighty-nine million, nine thousand, eight hundred fifty-two".