1144143243 has 24 divisors (see below), whose sum is σ = 1671109440. Its totient is φ = 754272000.

The previous prime is 1144143241. The next prime is 1144143271. The reversal of 1144143243 is 3423414411.

1144143243 is a `hidden beast` number, since 1 + 1 + 4 + 414 + 3 + 243 = 666.

It is not a de Polignac number, because 1144143243 - 2¹ = 1144143241 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1144143241) 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, 735955 + ... + 737507.

It is an arithmetic number, because the mean of its divisors is an integer number (69629560).

Almost surely, 2^1144143243 is an apocalyptic number.

1144143243 is a deficient number, since it is larger than the sum of its proper divisors (526966197).

1144143243 is a wasteful number, since it uses less digits than its factorization.

1144143243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2419 (or 2416 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 1144143243 is about 33825.1865183328. The cubic root of 1144143243 is about 1045.9079562604.

Adding to 1144143243 its reverse (3423414411), we get a palindrome (4567557654).

The spelling of 1144143243 in words is "one billion, one hundred forty-four million, one hundred forty-three thousand, two hundred forty-three".