160028321 has 4 divisors (see below), whose sum is σ = 160059312. Its totient is φ = 159997332.

The previous prime is 160028311. The next prime is 160028357. The reversal of 160028321 is 123820061.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123820061 = 17 ⋅7283533.

It is a cyclic number.

It is not a de Polignac number, because 160028321 - 2²² = 155834017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (160028311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5675 + ... + 18768.

It is an arithmetic number, because the mean of its divisors is an integer number (40014828).

Almost surely, 2^160028321 is an apocalyptic number.

It is an amenable number.

160028321 is a deficient number, since it is larger than the sum of its proper divisors (30991).

160028321 is an equidigital number, since it uses as much as digits as its factorization.

160028321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30990.

The product of its (nonzero) digits is 576, while the sum is 23.

The square root of 160028321 is about 12650.2300769591. The cubic root of 160028321 is about 542.9155526881.

Adding to 160028321 its reverse (123820061), we get a palindrome (283848382).

The spelling of 160028321 in words is "one hundred sixty million, twenty-eight thousand, three hundred twenty-one".