242045143 has 2 divisors, whose sum is σ = 242045144. Its totient is φ = 242045142.

The previous prime is 242045137. The next prime is 242045147. The reversal of 242045143 is 341540242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242045143 - 2⁹ = 242044631 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242045147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121022571 + 121022572.

It is an arithmetic number, because the mean of its divisors is an integer number (121022572).

Almost surely, 2^242045143 is an apocalyptic number.

242045143 is a deficient number, since it is larger than the sum of its proper divisors (1).

242045143 is an equidigital number, since it uses as much as digits as its factorization.

242045143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 25.

The square root of 242045143 is about 15557.8000694186. The cubic root of 242045143 is about 623.2067148868.

Adding to 242045143 its reverse (341540242), we get a palindrome (583585385).

The spelling of 242045143 in words is "two hundred forty-two million, forty-five thousand, one hundred forty-three".