214665 has 16 divisors (see below), whose sum is σ = 374976. Its totient is φ = 104000.

The previous prime is 214663. The next prime is 214667. The reversal of 214665 is 566412.

It is an interprime number because it is at equal distance from previous prime (214663) and next prime (214667).

It is not a de Polignac number, because 214665 - 2¹ = 214663 is a prime.

It is a plaindrome in base 16.

It is a nialpdrome in base 8.

It is not an unprimeable number, because it can be changed into a prime (214663) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 486 + ... + 815.

It is an arithmetic number, because the mean of its divisors is an integer number (23436).

2²¹⁴⁶⁶⁵ is an apocalyptic number.

It is an amenable number.

214665 is a deficient number, since it is larger than the sum of its proper divisors (160311).

214665 is a wasteful number, since it uses less digits than its factorization.

214665 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320.

The product of its digits is 1440, while the sum is 24.

The square root of 214665 is about 463.3195441593. The cubic root of 214665 is about 59.8761333491.

It can be divided in two parts, 2146 and 65, that added together give a triangular number (2211 = T₆₆).

The spelling of 214665 in words is "two hundred fourteen thousand, six hundred sixty-five".