242560081 has 2 divisors, whose sum is σ = 242560082. Its totient is φ = 242560080.

The previous prime is 242560051. The next prime is 242560117. The reversal of 242560081 is 180065242.

242560081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 230553856 + 12006225 = 15184^2 + 3465^2 .

It is a cyclic number.

It is not a de Polignac number, because 242560081 - 2²³ = 234171473 is a prime.

It is a super-2 number, since 2×242560081² = 117670785789453122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (242560051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121280040 + 121280041.

It is an arithmetic number, because the mean of its divisors is an integer number (121280041).

Almost surely, 2^242560081 is an apocalyptic number.

It is an amenable number.

242560081 is a deficient number, since it is larger than the sum of its proper divisors (1).

242560081 is an equidigital number, since it uses as much as digits as its factorization.

242560081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3840, while the sum is 28.

The square root of 242560081 is about 15574.3404675768. The cubic root of 242560081 is about 623.6483480866.

The spelling of 242560081 in words is "two hundred forty-two million, five hundred sixty thousand, eighty-one".