242439163 has 2 divisors, whose sum is σ = 242439164. Its totient is φ = 242439162.

The previous prime is 242439161. The next prime is 242439179. The reversal of 242439163 is 361934242.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 242439163 - 2¹ = 242439161 is a prime.

It is a super-2 number, since 2×242439163² = 117553495512281138, which contains 22 as substring.

Together with 242439161, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (242439161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121219581 + 121219582.

It is an arithmetic number, because the mean of its divisors is an integer number (121219582).

Almost surely, 2^242439163 is an apocalyptic number.

242439163 is a deficient number, since it is larger than the sum of its proper divisors (1).

242439163 is an equidigital number, since it uses as much as digits as its factorization.

242439163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 34.

The square root of 242439163 is about 15570.4580215227. The cubic root of 242439163 is about 623.5446997520.

The spelling of 242439163 in words is "two hundred forty-two million, four hundred thirty-nine thousand, one hundred sixty-three".