242143143 has 24 divisors (see below), whose sum is σ = 357504000. Its totient is φ = 145667280.

The previous prime is 242143123. The next prime is 242143199. The reversal of 242143143 is 341341242.

It is not a de Polignac number, because 242143143 - 2¹³ = 242134951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242143123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48058 + ... + 52856.

It is an arithmetic number, because the mean of its divisors is an integer number (14896000).

Almost surely, 2^242143143 is an apocalyptic number.

242143143 is a deficient number, since it is larger than the sum of its proper divisors (115360857).

242143143 is a wasteful number, since it uses less digits than its factorization.

242143143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4963 (or 4952 counting only the distinct ones).

The product of its digits is 2304, while the sum is 24.

The square root of 242143143 is about 15560.9492962351. The cubic root of 242143143 is about 623.2908121706.

Adding to 242143143 its reverse (341341242), we get a palindrome (583484385).

The spelling of 242143143 in words is "two hundred forty-two million, one hundred forty-three thousand, one hundred forty-three".