242010161 has 2 divisors, whose sum is σ = 242010162. Its totient is φ = 242010160.

The previous prime is 242010091. The next prime is 242010169. The reversal of 242010161 is 161010242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 241989136 + 21025 = 15556^2 + 145^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242010161 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (242010169) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121005080 + 121005081.

It is an arithmetic number, because the mean of its divisors is an integer number (121005081).

Almost surely, 2^242010161 is an apocalyptic number.

It is an amenable number.

242010161 is a deficient number, since it is larger than the sum of its proper divisors (1).

242010161 is an equidigital number, since it uses as much as digits as its factorization.

242010161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 242010161 is about 15556.6757695852. The cubic root of 242010161 is about 623.1766900914.

The spelling of 242010161 in words is "two hundred forty-two million, ten thousand, one hundred sixty-one".