163304609 has 8 divisors (see below), whose sum is σ = 175978152. Its totient is φ = 150647040.

The previous prime is 163304593. The next prime is 163304629. The reversal of 163304609 is 906403361.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 20430400 + 142874209 = 4520^2 + 11953^2 .

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 163304609 - 2⁴ = 163304593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (163304629) 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, 25187 + ... + 30999.

It is an arithmetic number, because the mean of its divisors is an integer number (21997269).

Almost surely, 2^163304609 is an apocalyptic number.

It is an amenable number.

163304609 is a deficient number, since it is larger than the sum of its proper divisors (12673543).

163304609 is a wasteful number, since it uses less digits than its factorization.

163304609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7987.

The product of its (nonzero) digits is 11664, while the sum is 32.

The square root of 163304609 is about 12779.0691758046. The cubic root of 163304609 is about 546.5956201460.

The spelling of 163304609 in words is "one hundred sixty-three million, three hundred four thousand, six hundred nine".