305230161 has 8 divisors (see below), whose sum is σ = 407350944. Its totient is φ = 203298080.

The previous prime is 305230157. The next prime is 305230169. The reversal of 305230161 is 161032503.

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 305230161 - 2² = 305230157 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (305230169) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43356 + ... + 49901.

It is an arithmetic number, because the mean of its divisors is an integer number (50918868).

Almost surely, 2^305230161 is an apocalyptic number.

It is an amenable number.

305230161 is a deficient number, since it is larger than the sum of its proper divisors (102120783).

305230161 is a wasteful number, since it uses less digits than its factorization.

305230161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94351.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 305230161 is about 17470.8374441525. The cubic root of 305230161 is about 673.3008280608.

Adding to 305230161 its reverse (161032503), we get a palindrome (466262664).

The spelling of 305230161 in words is "three hundred five million, two hundred thirty thousand, one hundred sixty-one".