1141121844 has 60 divisors (see below), whose sum is σ = 3002252484. Its totient is φ = 377934336.

The previous prime is 1141121843. The next prime is 1141121879. The reversal of 1141121844 is 4481211411.

It can be written as a sum of positive squares in 2 ways, for example, as 719312400 + 421809444 = 26820^2 + 20538^2 .

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1141121843) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 39652 + ... + 62084.

Almost surely, 2^1141121844 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 1141121844, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1501126242).

1141121844 is an abundant number, since it is smaller than the sum of its proper divisors (1861130640).

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

1141121844 is a wasteful number, since it uses less digits than its factorization.

1141121844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22606 (or 22595 counting only the distinct ones).

The product of its digits is 1024, while the sum is 27.

The square root of 1141121844 is about 33780.4950230159. The cubic root of 1141121844 is about 1044.9864833458.

The spelling of 1141121844 in words is "one billion, one hundred forty-one million, one hundred twenty-one thousand, eight hundred forty-four".