1153044 has 18 divisors (see below), whose sum is σ = 2914730. Its totient is φ = 384336.

The previous prime is 1153027. The next prime is 1153049. The reversal of 1153044 is 4403511.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 608400 + 544644 = 780^2 + 738^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1153049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 15979 + ... + 16050.

2^1153044 is an apocalyptic number.

It is an amenable number.

1153044 is an abundant number, since it is smaller than the sum of its proper divisors (1761686).

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

1153044 is a wasteful number, since it uses less digits than its factorization.

1153044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32039 (or 32034 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

The square root of 1153044 is about 1073.7988638474. The cubic root of 1153044 is about 104.8613134989.

Adding to 1153044 its reverse (4403511), we get a palindrome (5556555).

The spelling of 1153044 in words is "one million, one hundred fifty-three thousand, forty-four".