242342171 has 2 divisors, whose sum is σ = 242342172. Its totient is φ = 242342170.

The previous prime is 242342153. The next prime is 242342197. The reversal of 242342171 is 171243242.

It is an a-pointer prime, because the next prime (242342197) can be obtained adding 242342171 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242342171 - 2¹⁰ = 242341147 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 242342171.

It is not a weakly prime, because it can be changed into another prime (242342671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121171085 + 121171086.

It is an arithmetic number, because the mean of its divisors is an integer number (121171086).

Almost surely, 2^242342171 is an apocalyptic number.

242342171 is a deficient number, since it is larger than the sum of its proper divisors (1).

242342171 is an equidigital number, since it uses as much as digits as its factorization.

242342171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2688, while the sum is 26.

The square root of 242342171 is about 15567.3430937973. The cubic root of 242342171 is about 623.4615353631.

The spelling of 242342171 in words is "two hundred forty-two million, three hundred forty-two thousand, one hundred seventy-one".