161022304 has 24 divisors (see below), whose sum is σ = 317299248. Its totient is φ = 80438400.

The previous prime is 161022299. The next prime is 161022313. The reversal of 161022304 is 403220161.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59509 + ... + 62155.

It is an arithmetic number, because the mean of its divisors is an integer number (13220802).

Almost surely, 2^161022304 is an apocalyptic number.

It is an amenable number.

161022304 is a deficient number, since it is larger than the sum of its proper divisors (156276944).

161022304 is a wasteful number, since it uses less digits than its factorization.

161022304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4558 (or 4550 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 161022304 is about 12689.4564107372. The cubic root of 161022304 is about 544.0373028054.

Adding to 161022304 its reverse (403220161), we get a palindrome (564242465).

The spelling of 161022304 in words is "one hundred sixty-one million, twenty-two thousand, three hundred four".