1143201144 has 16 divisors (see below), whose sum is σ = 2858002920. Its totient is φ = 381067040.

The previous prime is 1143201133. The next prime is 1143201151. The reversal of 1143201144 is 4411023411.

It is a self number, because there is not a number n which added to its sum of digits gives 1143201144.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23816667 + ... + 23816714.

Almost surely, 2^1143201144 is an apocalyptic number.

It is an amenable number.

1143201144 is an abundant number, since it is smaller than the sum of its proper divisors (1714801776).

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

1143201144 is a wasteful number, since it uses less digits than its factorization.

1143201144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47633390 (or 47633386 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1143201144 is about 33811.2576518532. The cubic root of 1143201144 is about 1045.6208070717.

Adding to 1143201144 its reverse (4411023411), we get a palindrome (5554224555).

The spelling of 1143201144 in words is "one billion, one hundred forty-three million, two hundred one thousand, one hundred forty-four".