1142044173 has 24 divisors (see below), whose sum is σ = 1766302200. Its totient is φ = 708516864.

The previous prime is 1142044151. The next prime is 1142044177. The reversal of 1142044173 is 3714402411.

It can be written as a sum of positive squares in 4 ways, for example, as 29354724 + 1112689449 = 5418^2 + 33357^2 .

It is not a de Polignac number, because 1142044173 - 2²¹ = 1139947021 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1142044177) 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 in 23 ways as a sum of consecutive naturals, for example, 28318 + ... + 55551.

It is an arithmetic number, because the mean of its divisors is an integer number (73595925).

Almost surely, 2^1142044173 is an apocalyptic number.

It is an amenable number.

1142044173 is a deficient number, since it is larger than the sum of its proper divisors (624258027).

1142044173 is a wasteful number, since it uses less digits than its factorization.

1142044173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83981 (or 83978 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 27.

The square root of 1142044173 is about 33794.1440637280. The cubic root of 1142044173 is about 1045.2679495730.

Adding to 1142044173 its reverse (3714402411), we get a palindrome (4856446584).

The spelling of 1142044173 in words is "one billion, one hundred forty-two million, forty-four thousand, one hundred seventy-three".