2143001144 has 16 divisors (see below), whose sum is σ = 4027677720. Its totient is φ = 1068953760.

The previous prime is 2143001129. The next prime is 2143001167. The reversal of 2143001144 is 4411003412.

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, 314774 + ... + 321509.

Almost surely, 2^2143001144 is an apocalyptic number.

It is an amenable number.

2143001144 is a deficient number, since it is larger than the sum of its proper divisors (1884676576).

2143001144 is a wasteful number, since it uses less digits than its factorization.

2143001144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636710 (or 636706 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2143001144 is about 46292.5603526096. The cubic root of 2143001144 is about 1289.2608677682.

Adding to 2143001144 its reverse (4411003412), we get a palindrome (6554004556).

The spelling of 2143001144 in words is "two billion, one hundred forty-three million, one thousand, one hundred forty-four".