242709983 has 2 divisors, whose sum is σ = 242709984. Its totient is φ = 242709982.

The previous prime is 242709977. The next prime is 242709991. The reversal of 242709983 is 389907242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242709983 - 2⁴ = 242709967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242709913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121354991 + 121354992.

It is an arithmetic number, because the mean of its divisors is an integer number (121354992).

Almost surely, 2^242709983 is an apocalyptic number.

242709983 is a deficient number, since it is larger than the sum of its proper divisors (1).

242709983 is an equidigital number, since it uses as much as digits as its factorization.

242709983 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 242709983 is about 15579.1521913100. The cubic root of 242709983 is about 623.7767930788.

The spelling of 242709983 in words is "two hundred forty-two million, seven hundred nine thousand, nine hundred eighty-three".