242069081 has 2 divisors, whose sum is σ = 242069082. Its totient is φ = 242069080.

The previous prime is 242069041. The next prime is 242069099. The reversal of 242069081 is 180960242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 223233481 + 18835600 = 14941^2 + 4340^2 .

It is a cyclic number.

It is not a de Polignac number, because 242069081 - 2⁶ = 242069017 is a prime.

It is a super-2 number, since 2×242069081² = 117194879952369122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (242069021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121034540 + 121034541.

It is an arithmetic number, because the mean of its divisors is an integer number (121034541).

Almost surely, 2^242069081 is an apocalyptic number.

It is an amenable number.

242069081 is a deficient number, since it is larger than the sum of its proper divisors (1).

242069081 is an equidigital number, since it uses as much as digits as its factorization.

242069081 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 242069081 is about 15558.5693751064. The cubic root of 242069081 is about 623.2272590304.

The spelling of 242069081 in words is "two hundred forty-two million, sixty-nine thousand, eighty-one".