242240171 has 2 divisors, whose sum is σ = 242240172. Its totient is φ = 242240170.

The previous prime is 242240087. The next prime is 242240203. The reversal of 242240171 is 171042242.

242240171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 242240171 - 2¹⁰ = 242239147 is a prime.

It is a super-2 number, since 2×242240171² = 117360600892218482, which contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (242240771) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121120085 + 121120086.

It is an arithmetic number, because the mean of its divisors is an integer number (121120086).

Almost surely, 2^242240171 is an apocalyptic number.

242240171 is a deficient number, since it is larger than the sum of its proper divisors (1).

242240171 is an equidigital number, since it uses as much as digits as its factorization.

242240171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 896, while the sum is 23.

The square root of 242240171 is about 15564.0666600988. The cubic root of 242240171 is about 623.3740529955.

The spelling of 242240171 in words is "two hundred forty-two million, two hundred forty thousand, one hundred seventy-one".