242120061 has 6 divisors (see below), whose sum is σ = 349728990. Its totient is φ = 161413368.

The previous prime is 242120029. The next prime is 242120063. The reversal of 242120061 is 160021242.

It can be written as a sum of positive squares in only one way, i.e., 191268900 + 50851161 = 13830^2 + 7131^2 .

It is not a de Polignac number, because 242120061 - 2⁵ = 242120029 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242120063) 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 in 5 ways as a sum of consecutive naturals, for example, 13451106 + ... + 13451123.

It is an arithmetic number, because the mean of its divisors is an integer number (58288165).

Almost surely, 2^242120061 is an apocalyptic number.

It is an amenable number.

242120061 is a deficient number, since it is larger than the sum of its proper divisors (107608929).

242120061 is a wasteful number, since it uses less digits than its factorization.

242120061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26902235 (or 26902232 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 242120061 is about 15560.2076142962. The cubic root of 242120061 is about 623.2710067289.

The spelling of 242120061 in words is "two hundred forty-two million, one hundred twenty thousand, sixty-one".