242101 has 2 divisors, whose sum is σ = 242102. Its totient is φ = 242100.

The previous prime is 242093. The next prime is 242119. The reversal of 242101 is 101242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202500 + 39601 = 450^2 + 199^2 .

It is a cyclic number.

It is not a de Polignac number, because 242101 - 2³ = 242093 is a prime.

It is a super-2 number, since 2×242101² = 117225788402, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121050 + 121051.

It is an arithmetic number, because the mean of its divisors is an integer number (121051).

2²⁴²¹⁰¹ is an apocalyptic number.

It is an amenable number.

242101 is a deficient number, since it is larger than the sum of its proper divisors (1).

242101 is an equidigital number, since it uses as much as digits as its factorization.

242101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16, while the sum is 10.

The square root of 242101 is about 492.0376001893. The cubic root of 242101 is about 62.3254650545.

Adding to 242101 its reverse (101242), we get a palindrome (343343).

It can be divided in two parts, 242 and 101, that multiplied together give a palindrome (24442).

The spelling of 242101 in words is "two hundred forty-two thousand, one hundred one", and thus it is an iban number.