1153533044 has 6 divisors (see below), whose sum is σ = 2018682834. Its totient is φ = 576766520.

The previous prime is 1153533001. The next prime is 1153533049. The reversal of 1153533044 is 4403353511.

It can be written as a sum of positive squares in only one way, i.e., 1153417444 + 115600 = 33962^2 + 340^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1153532998 and 1153533016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153533049) 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 as a sum of consecutive naturals, namely, 144191627 + ... + 144191634.

It is an arithmetic number, because the mean of its divisors is an integer number (336447139).

Almost surely, 2^1153533044 is an apocalyptic number.

It is an amenable number.

1153533044 is a deficient number, since it is larger than the sum of its proper divisors (865149790).

1153533044 is a wasteful number, since it uses less digits than its factorization.

1153533044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288383265 (or 288383263 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The square root of 1153533044 is about 33963.7018594852. The cubic root of 1153533044 is about 1048.7613645092.

Adding to 1153533044 its reverse (4403353511), we get a palindrome (5556886555).

The spelling of 1153533044 in words is "one billion, one hundred fifty-three million, five hundred thirty-three thousand, forty-four".