1141237044 has 72 divisors (see below), whose sum is σ = 2940723240. Its totient is φ = 373075200.

The previous prime is 1141237021. The next prime is 1141237049. The reversal of 1141237044 is 4407321411.

It can be written as a sum of positive squares in 4 ways, for example, as 100400400 + 1040836644 = 10020^2 + 32262^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1141236999 and 1141237017.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141237049) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1117254 + ... + 1118274.

Almost surely, 2^1141237044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1141237044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1470361620).

1141237044 is an abundant number, since it is smaller than the sum of its proper divisors (1799486196).

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

1141237044 is a wasteful number, since it uses less digits than its factorization.

1141237044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1601 (or 1596 counting only the distinct ones).

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

The square root of 1141237044 is about 33782.2001059730. The cubic root of 1141237044 is about 1045.0216471024.

Adding to 1141237044 its reverse (4407321411), we get a palindrome (5548558455).

The spelling of 1141237044 in words is "one billion, one hundred forty-one million, two hundred thirty-seven thousand, forty-four".