321125 has 16 divisors (see below), whose sum is σ = 459264. Its totient is φ = 219600.

The previous prime is 321109. The next prime is 321143. The reversal of 321125 is 521123.

It is a happy number.

It is not a de Polignac number, because 321125 - 2⁴ = 321109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 321125.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 692 + ... + 1058.

It is an arithmetic number, because the mean of its divisors is an integer number (28704).

2³²¹¹²⁵ is an apocalyptic number.

321125 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

321125 is a deficient number, since it is larger than the sum of its proper divisors (138139).

321125 is an equidigital number, since it uses as much as digits as its factorization.

321125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 379 counting only the distinct ones).

The product of its digits is 60, while the sum is 14.

The square root of 321125 is about 566.6789214361. The cubic root of 321125 is about 68.4790992408.

Adding to 321125 its reverse (521123), we get a palindrome (842248).

The spelling of 321125 in words is "three hundred twenty-one thousand, one hundred twenty-five".