242061161 has 4 divisors (see below), whose sum is σ = 242092800. Its totient is φ = 242029524.

The previous prime is 242061143. The next prime is 242061191. The reversal of 242061161 is 161160242.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 242061161 - 2⁶ = 242061097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242061101) 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 in 3 ways as a sum of consecutive naturals, for example, 3620 + ... + 22298.

It is an arithmetic number, because the mean of its divisors is an integer number (60523200).

Almost surely, 2^242061161 is an apocalyptic number.

It is an amenable number.

242061161 is a deficient number, since it is larger than the sum of its proper divisors (31639).

242061161 is a wasteful number, since it uses less digits than its factorization.

242061161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31638.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 242061161 is about 15558.3148509085. The cubic root of 242061161 is about 623.2204620537.

The spelling of 242061161 in words is "two hundred forty-two million, sixty-one thousand, one hundred sixty-one".