321160 has 64 divisors (see below), whose sum is σ = 875520. Its totient is φ = 103680.

The previous prime is 321143. The next prime is 321163. The reversal of 321160 is 61123.

It is a self number, because there is not a number n which added to its sum of digits gives 321160.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321163) by changing a digit.

321160 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8662 + ... + 8698.

It is an arithmetic number, because the mean of its divisors is an integer number (13680).

2³²¹¹⁶⁰ is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 321160, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (437760).

321160 is an abundant number, since it is smaller than the sum of its proper divisors (554360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321160 is a wasteful number, since it uses less digits than its factorization.

321160 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86 (or 82 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 321160 is about 566.7098022798. The cubic root of 321160 is about 68.4815870378.

Adding to 321160 its reverse (61123), we get a palindrome (382283).

It can be divided in two parts, 321 and 160, that multiplied together give a triangular number (51360 = T₃₂₀).

The spelling of 321160 in words is "three hundred twenty-one thousand, one hundred sixty".