242871 has 8 divisors (see below), whose sum is σ = 328560. Its totient is φ = 159552.

The previous prime is 242867. The next prime is 242873. The reversal of 242871 is 178242.

242871 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 242871 - 2² = 242867 is a prime.

It is a Smith number, since the sum of its digits (24) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

242871 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242873) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 336 + ... + 773.

It is an arithmetic number, because the mean of its divisors is an integer number (41070).

2²⁴²⁸⁷¹ is an apocalyptic number.

242871 is a deficient number, since it is larger than the sum of its proper divisors (85689).

242871 is a wasteful number, since it uses less digits than its factorization.

242871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1185.

The product of its digits is 896, while the sum is 24.

The square root of 242871 is about 492.8194395516. The cubic root of 242871 is about 62.3914703167.

The spelling of 242871 in words is "two hundred forty-two thousand, eight hundred seventy-one".