214165 has 16 divisors (see below), whose sum is σ = 305280. Its totient is φ = 141120.

The previous prime is 214163. The next prime is 214177. The reversal of 214165 is 561412.

It is not a de Polignac number, because 214165 - 2¹ = 214163 is a prime.

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

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (214163) 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, 910 + ... + 1120.

It is an arithmetic number, because the mean of its divisors is an integer number (19080).

2²¹⁴¹⁶⁵ is an apocalyptic number.

It is an amenable number.

214165 is a deficient number, since it is larger than the sum of its proper divisors (91115).

214165 is a wasteful number, since it uses less digits than its factorization.

214165 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252.

The product of its digits is 240, while the sum is 19.

The square root of 214165 is about 462.7796451876. The cubic root of 214165 is about 59.8296091667.

Adding to 214165 its reverse (561412), we get a palindrome (775577).

It can be divided in two parts, 21 and 4165, that added together give a triangular number (4186 = T₉₁).

The spelling of 214165 in words is "two hundred fourteen thousand, one hundred sixty-five".