243079 has 4 divisors (see below), whose sum is σ = 248776. Its totient is φ = 237384.

The previous prime is 243077. The next prime is 243091. The reversal of 243079 is 970342.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 970342 = 2 ⋅485171.

It is a cyclic number.

It is not a de Polignac number, because 243079 - 2¹ = 243077 is a prime.

It is a Duffinian number.

243079 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243073) 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, 2784 + ... + 2869.

It is an arithmetic number, because the mean of its divisors is an integer number (62194).

2²⁴³⁰⁷⁹ is an apocalyptic number.

243079 is a deficient number, since it is larger than the sum of its proper divisors (5697).

243079 is an equidigital number, since it uses as much as digits as its factorization.

243079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5696.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 243079 is about 493.0304250247. The cubic root of 243079 is about 62.4092763713.

The spelling of 243079 in words is "two hundred forty-three thousand, seventy-nine".