1155041112 has 64 divisors (see below), whose sum is σ = 2949696000. Its totient is φ = 376793984.

The previous prime is 1155041089. The next prime is 1155041123. The reversal of 1155041112 is 2111405511.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 336718 + ... + 340130.

It is an arithmetic number, because the mean of its divisors is an integer number (46089000).

Almost surely, 2^1155041112 is an apocalyptic number.

1155041112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1155041112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474848000).

1155041112 is an abundant number, since it is smaller than the sum of its proper divisors (1794654888).

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

1155041112 is a wasteful number, since it uses less digits than its factorization.

1155041112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3720 (or 3716 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 21.

The square root of 1155041112 is about 33985.8957804558. The cubic root of 1155041112 is about 1049.2181971726.

Adding to 1155041112 its reverse (2111405511), we get a palindrome (3266446623).

The spelling of 1155041112 in words is "one billion, one hundred fifty-five million, forty-one thousand, one hundred twelve".