146321 has 4 divisors (see below), whose sum is σ = 167232. Its totient is φ = 125412.

The previous prime is 146317. The next prime is 146323. The reversal of 146321 is 123641.

146321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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.

It is not a de Polignac number, because 146321 - 2² = 146317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 146321.

It is not an unprimeable number, because it can be changed into a prime (146323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10445 + ... + 10458.

It is an arithmetic number, because the mean of its divisors is an integer number (41808).

2¹⁴⁶³²¹ is an apocalyptic number.

It is an amenable number.

146321 is a deficient number, since it is larger than the sum of its proper divisors (20911).

146321 is an equidigital number, since it uses as much as digits as its factorization.

146321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20910.

The product of its digits is 144, while the sum is 17.

The square root of 146321 is about 382.5192805598. The cubic root of 146321 is about 52.6949366645.

Adding to 146321 its reverse (123641), we get a palindrome (269962).

The spelling of 146321 in words is "one hundred forty-six thousand, three hundred twenty-one".