242305161 has 32 divisors (see below), whose sum is σ = 389173248. Its totient is φ = 131102400.

The previous prime is 242305159. The next prime is 242305171. The reversal of 242305161 is 161503242.

It is not a de Polignac number, because 242305161 - 2¹ = 242305159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (242305111) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46300 + ... + 51266.

It is an arithmetic number, because the mean of its divisors is an integer number (12161664).

Almost surely, 2^242305161 is an apocalyptic number.

242305161 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

242305161 is a deficient number, since it is larger than the sum of its proper divisors (146868087).

242305161 is a wasteful number, since it uses less digits than its factorization.

242305161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101.

The product of its (nonzero) digits is 1440, while the sum is 24.

The square root of 242305161 is about 15566.1543420332. The cubic root of 242305161 is about 623.4297958244.

The spelling of 242305161 in words is "two hundred forty-two million, three hundred five thousand, one hundred sixty-one".