304540161 has 8 divisors (see below), whose sum is σ = 406699584. Its totient is φ = 202703760.

The previous prime is 304540127. The next prime is 304540163. The reversal of 304540161 is 161045403.

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

It is a de Polignac number, because none of the positive numbers 2^k-304540161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (304540163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 78546 + ... + 82331.

It is an arithmetic number, because the mean of its divisors is an integer number (50837448).

Almost surely, 2^304540161 is an apocalyptic number.

It is an amenable number.

304540161 is a deficient number, since it is larger than the sum of its proper divisors (102159423).

304540161 is a wasteful number, since it uses less digits than its factorization.

304540161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161511.

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

The square root of 304540161 is about 17451.0790783837. The cubic root of 304540161 is about 672.7930930856.

Adding to 304540161 its reverse (161045403), we get a palindrome (465585564).

The spelling of 304540161 in words is "three hundred four million, five hundred forty thousand, one hundred sixty-one".