214905 has 8 divisors (see below), whose sum is σ = 343872. Its totient is φ = 114608.

The previous prime is 214891. The next prime is 214913. The reversal of 214905 is 509412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 214905 - 2¹⁰ = 213881 is a prime.

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

It is a plaindrome in base 16.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7149 + ... + 7178.

It is an arithmetic number, because the mean of its divisors is an integer number (42984).

2²¹⁴⁹⁰⁵ is an apocalyptic number.

It is an amenable number.

214905 is a deficient number, since it is larger than the sum of its proper divisors (128967).

214905 is a wasteful number, since it uses less digits than its factorization.

214905 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14335.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 214905 is about 463.5784723216. The cubic root of 214905 is about 59.8984392985.

The spelling of 214905 in words is "two hundred fourteen thousand, nine hundred five".