160721223 has 16 divisors (see below), whose sum is σ = 231196896. Its totient is φ = 98726400.

The previous prime is 160721207. The next prime is 160721233. The reversal of 160721223 is 322127061.

It is not a de Polignac number, because 160721223 - 2⁴ = 160721207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 160721193 and 160721202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (160721203) 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 15 ways as a sum of consecutive naturals, for example, 20011 + ... + 26867.

It is an arithmetic number, because the mean of its divisors is an integer number (14449806).

Almost surely, 2^160721223 is an apocalyptic number.

160721223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

160721223 is a deficient number, since it is larger than the sum of its proper divisors (70475673).

160721223 is a wasteful number, since it uses less digits than its factorization.

160721223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7474.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 160721223 is about 12677.5874282136. The cubic root of 160721223 is about 543.6980092449.

Adding to 160721223 its reverse (322127061), we get a palindrome (482848284).

The spelling of 160721223 in words is "one hundred sixty million, seven hundred twenty-one thousand, two hundred twenty-three".