214321 has 4 divisors (see below), whose sum is σ = 216432. Its totient is φ = 212212.

The previous prime is 214309. The next prime is 214351. The reversal of 214321 is 123412.

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 a cyclic number.

It is not a de Polignac number, because 214321 - 2¹⁵ = 181553 is a prime.

It is a Smith number, since the sum of its digits (13) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an alternating number because its digits alternate between even and odd.

It is a Duffinian number.

214321 is a modest number, since divided by 321 gives 214 as remainder.

It is not an unprimeable number, because it can be changed into a prime (214351) 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, 895 + ... + 1108.

It is an arithmetic number, because the mean of its divisors is an integer number (54108).

2²¹⁴³²¹ is an apocalyptic number.

It is an amenable number.

214321 is a deficient number, since it is larger than the sum of its proper divisors (2111).

214321 is a wasteful number, since it uses less digits than its factorization.

214321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2110.

The product of its digits is 48, while the sum is 13.

The square root of 214321 is about 462.9481612449. The cubic root of 214321 is about 59.8441324762.

Adding to 214321 its product of digits (48), we get a square (214369 = 463²).

Adding to 214321 its reverse (123412), we get a palindrome (337733).

Subtracting from 214321 its reverse (123412), we obtain a palindrome (90909).

It can be divided in two parts, 214 and 321, that added together give a palindrome (535).

The spelling of 214321 in words is "two hundred fourteen thousand, three hundred twenty-one", and thus it is an iban number.