1143441144 has 32 divisors (see below), whose sum is σ = 3176226000. Its totient is φ = 381146976.

The previous prime is 1143441137. The next prime is 1143441161. The reversal of 1143441144 is 4411443411.

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

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2646639 + ... + 2647070.

Almost surely, 2^1143441144 is an apocalyptic number.

It is an amenable number.

1143441144 is an abundant number, since it is smaller than the sum of its proper divisors (2032784856).

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

1143441144 is a wasteful number, since it uses less digits than its factorization.

1143441144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5293724 (or 5293714 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

The square root of 1143441144 is about 33814.8065793670. The cubic root of 1143441144 is about 1045.6939733836.

Adding to 1143441144 its reverse (4411443411), we get a palindrome (5554884555).

The spelling of 1143441144 in words is "one billion, one hundred forty-three million, four hundred forty-one thousand, one hundred forty-four".