242579 has 4 divisors (see below), whose sum is σ = 245976. Its totient is φ = 239184.

The previous prime is 242551. The next prime is 242591. The reversal of 242579 is 975242.

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 242579 - 2¹⁶ = 177043 is a prime.

It is a d-powerful number, because it can be written as 2⁸ + 4³ + 5² + 2¹⁶ + 7⁶ + 9⁵ .

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242509) 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, 1589 + ... + 1734.

It is an arithmetic number, because the mean of its divisors is an integer number (61494).

2²⁴²⁵⁷⁹ is an apocalyptic number.

242579 is a deficient number, since it is larger than the sum of its proper divisors (3397).

242579 is an equidigital number, since it uses as much as digits as its factorization.

242579 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3396.

The product of its digits is 5040, while the sum is 29.

The square root of 242579 is about 492.5230959052. The cubic root of 242579 is about 62.3664561934.

It can be divided in two parts, 2 and 42579, that multiplied together give a palindrome (85158).

The spelling of 242579 in words is "two hundred forty-two thousand, five hundred seventy-nine".