242981563 has 8 divisors (see below), whose sum is σ = 265608000. Its totient is φ = 220444680.

The previous prime is 242981533. The next prime is 242981567. The reversal of 242981563 is 365189242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242981563 - 2¹³ = 242973371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242981567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16645 + ... + 27622.

It is an arithmetic number, because the mean of its divisors is an integer number (33201000).

Almost surely, 2^242981563 is an apocalyptic number.

242981563 is a deficient number, since it is larger than the sum of its proper divisors (22626437).

242981563 is a wasteful number, since it uses less digits than its factorization.

242981563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44777.

The product of its digits is 103680, while the sum is 40.

The square root of 242981563 is about 15587.8658898516. The cubic root of 242981563 is about 624.0093644154.

The spelling of 242981563 in words is "two hundred forty-two million, nine hundred eighty-one thousand, five hundred sixty-three".