242659559 has 4 divisors (see below), whose sum is σ = 251027160. Its totient is φ = 234291960.

The previous prime is 242659523. The next prime is 242659561. The reversal of 242659559 is 955956242.

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 242659559 - 2²⁰ = 241610983 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 (242659589) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4183757 + ... + 4183814.

It is an arithmetic number, because the mean of its divisors is an integer number (62756790).

Almost surely, 2^242659559 is an apocalyptic number.

242659559 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

242659559 is a deficient number, since it is larger than the sum of its proper divisors (8367601).

242659559 is an equidigital number, since it uses as much as digits as its factorization.

242659559 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8367600.

The product of its digits is 972000, while the sum is 47.

The square root of 242659559 is about 15577.5337906872. The cubic root of 242659559 is about 623.7335926865.

The spelling of 242659559 in words is "two hundred forty-two million, six hundred fifty-nine thousand, five hundred fifty-nine".