1115543196 has 72 divisors (see below), whose sum is σ = 3027888864. Its totient is φ = 345031680.

The previous prime is 1115543189. The next prime is 1115543227. The reversal of 1115543196 is 6913455111.

1115543196 is a `hidden beast` number, since 1 + 11 + 554 + 3 + 1 + 96 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a self number, because there is not a number n which added to its sum of digits gives 1115543196.

It is a congruent number.

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 23 ways as a sum of consecutive naturals, for example, 30616 + ... + 56288.

It is an arithmetic number, because the mean of its divisors is an integer number (42054012).

Almost surely, 2^1115543196 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1115543196, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1513944432).

1115543196 is an abundant number, since it is smaller than the sum of its proper divisors (1912345668).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1115543196 is a wasteful number, since it uses less digits than its factorization.

1115543196 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25771 (or 25766 counting only the distinct ones).

The product of its digits is 16200, while the sum is 36.

The square root of 1115543196 is about 33399.7484421664. The cubic root of 1115543196 is about 1037.1194934258.

The spelling of 1115543196 in words is "one billion, one hundred fifteen million, five hundred forty-three thousand, one hundred ninety-six".