242447161 has 8 divisors (see below), whose sum is σ = 265676544. Its totient is φ = 219415920.

The previous prime is 242447143. The next prime is 242447243. The reversal of 242447161 is 161744242.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 242447161 - 2⁹ = 242446649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (242447111) 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 7 ways as a sum of consecutive naturals, for example, 46966 + ... + 51871.

It is an arithmetic number, because the mean of its divisors is an integer number (33209568).

Almost surely, 2^242447161 is an apocalyptic number.

It is an amenable number.

242447161 is a deficient number, since it is larger than the sum of its proper divisors (23229383).

242447161 is a wasteful number, since it uses less digits than its factorization.

242447161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99071.

The product of its digits is 10752, while the sum is 31.

The square root of 242447161 is about 15570.7148519264. The cubic root of 242447161 is about 623.5515565316.

The spelling of 242447161 in words is "two hundred forty-two million, four hundred forty-seven thousand, one hundred sixty-one".