242863 has 2 divisors, whose sum is σ = 242864. Its totient is φ = 242862.

The previous prime is 242819. The next prime is 242867. The reversal of 242863 is 368242.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242863 - 2¹⁷ = 111791 is a prime.

It is a d-powerful number, because it can be written as 2³ + 4⁸ + 8 + 2⁷ + 6² + 3¹¹ .

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242867) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121431 + 121432.

It is an arithmetic number, because the mean of its divisors is an integer number (121432).

2²⁴²⁸⁶³ is an apocalyptic number.

242863 is a deficient number, since it is larger than the sum of its proper divisors (1).

242863 is an equidigital number, since it uses as much as digits as its factorization.

242863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2304, while the sum is 25.

The square root of 242863 is about 492.8113229219. The cubic root of 242863 is about 62.3907852654.

The spelling of 242863 in words is "two hundred forty-two thousand, eight hundred sixty-three".