242659 has 2 divisors, whose sum is σ = 242660. Its totient is φ = 242658.

The previous prime is 242647. The next prime is 242677. The reversal of 242659 is 956242.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242659 - 2⁹ = 242147 is a prime.

242659 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (242629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121329 + 121330.

It is an arithmetic number, because the mean of its divisors is an integer number (121330).

2²⁴²⁶⁵⁹ is an apocalyptic number.

242659 is a deficient number, since it is larger than the sum of its proper divisors (1).

242659 is an equidigital number, since it uses as much as digits as its factorization.

242659 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4320, while the sum is 28.

The square root of 242659 is about 492.6043036759. The cubic root of 242659 is about 62.3733113734.

It can be divided in two parts, 2426 and 59, that added together give a triangular number (2485 = T₇₀).

The spelling of 242659 in words is "two hundred forty-two thousand, six hundred fifty-nine".