214505 has 4 divisors (see below), whose sum is σ = 257412. Its totient is φ = 171600.

The previous prime is 214499. The next prime is 214507. The reversal of 214505 is 505412.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 123904 + 90601 = 352^2 + 301^2 .

It is not a de Polignac number, because 214505 - 2¹⁰ = 213481 is a prime.

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

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 214505.

It is not an unprimeable number, because it can be changed into a prime (214507) 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, 21446 + ... + 21455.

It is an arithmetic number, because the mean of its divisors is an integer number (64353).

2²¹⁴⁵⁰⁵ is an apocalyptic number.

It is an amenable number.

214505 is a deficient number, since it is larger than the sum of its proper divisors (42907).

214505 is an equidigital number, since it uses as much as digits as its factorization.

214505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42906.

The product of its (nonzero) digits is 200, while the sum is 17.

The square root of 214505 is about 463.1468449639. The cubic root of 214505 is about 59.8612534781.

Adding to 214505 its reverse (505412), we get a palindrome (719917).

The spelling of 214505 in words is "two hundred fourteen thousand, five hundred five".