1155044033 has 16 divisors (see below), whose sum is σ = 1375575936. Its totient is φ = 955981440.

The previous prime is 1155043963. The next prime is 1155044081. The reversal of 1155044033 is 3304405511.

It is a cyclic number.

It is not a de Polignac number, because 1155044033 - 2¹⁰ = 1155043009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1155043993 and 1155044011.

It is not an unprimeable number, because it can be changed into a prime (1155044633) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44885 + ... + 65762.

It is an arithmetic number, because the mean of its divisors is an integer number (85973496).

Almost surely, 2^1155044033 is an apocalyptic number.

1155044033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1155044033 is a deficient number, since it is larger than the sum of its proper divisors (220531903).

1155044033 is a wasteful number, since it uses less digits than its factorization.

1155044033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110744.

The product of its (nonzero) digits is 3600, while the sum is 26.

The square root of 1155044033 is about 33985.9387541377. The cubic root of 1155044033 is about 1049.2190816329.

Adding to 1155044033 its reverse (3304405511), we get a palindrome (4459449544).

The spelling of 1155044033 in words is "one billion, one hundred fifty-five million, forty-four thousand, thirty-three".