242004143 has 4 divisors (see below), whose sum is σ = 243745320. Its totient is φ = 240262968.

The previous prime is 242004131. The next prime is 242004151. The reversal of 242004143 is 341400242.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 242004143 - 2²² = 237809839 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242004173) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 870380 + ... + 870657.

It is an arithmetic number, because the mean of its divisors is an integer number (60936330).

Almost surely, 2^242004143 is an apocalyptic number.

242004143 is a deficient number, since it is larger than the sum of its proper divisors (1741177).

242004143 is a wasteful number, since it uses less digits than its factorization.

242004143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1741176.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 242004143 is about 15556.4823465975. The cubic root of 242004143 is about 623.1715245942.

Adding to 242004143 its reverse (341400242), we get a palindrome (583404385).

The spelling of 242004143 in words is "two hundred forty-two million, four thousand, one hundred forty-three".