242983 has 4 divisors (see below), whose sum is σ = 261688. Its totient is φ = 224280.

The previous prime is 242971. The next prime is 242989. The reversal of 242983 is 389242.

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 242983 - 2¹³ = 234791 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 (242989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9333 + ... + 9358.

It is an arithmetic number, because the mean of its divisors is an integer number (65422).

2²⁴²⁹⁸³ is an apocalyptic number.

242983 is a deficient number, since it is larger than the sum of its proper divisors (18705).

242983 is a wasteful number, since it uses less digits than its factorization.

242983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18704.

The product of its digits is 3456, while the sum is 28.

The square root of 242983 is about 492.9330583355. The cubic root of 242983 is about 62.4010594549.

It can be divided in two parts, 242 and 983, that added together give a triangular number (1225 = T₄₉).

The spelling of 242983 in words is "two hundred forty-two thousand, nine hundred eighty-three".