242071 has 4 divisors (see below), whose sum is σ = 245752. Its totient is φ = 238392.

The previous prime is 242069. The next prime is 242083. The reversal of 242071 is 170242.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 170242 = 2 ⋅85121.

It is a cyclic number.

It is not a de Polignac number, because 242071 - 2¹ = 242069 is a prime.

It is a Duffinian number.

242071 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242171) 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, 1740 + ... + 1873.

It is an arithmetic number, because the mean of its divisors is an integer number (61438).

2²⁴²⁰⁷¹ is an apocalyptic number.

242071 is a deficient number, since it is larger than the sum of its proper divisors (3681).

242071 is an equidigital number, since it uses as much as digits as its factorization.

242071 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3680.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 242071 is about 492.0071137697. The cubic root of 242071 is about 62.3228905902.

The spelling of 242071 in words is "two hundred forty-two thousand, seventy-one", and thus it is an iban number.