219855 has 8 divisors (see below), whose sum is σ = 351792. Its totient is φ = 117248.

The previous prime is 219851. The next prime is 219871. The reversal of 219855 is 558912.

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 219855 - 2² = 219851 is a prime.

219855 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (219851) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7314 + ... + 7343.

It is an arithmetic number, because the mean of its divisors is an integer number (43974).

2²¹⁹⁸⁵⁵ is an apocalyptic number.

219855 is a deficient number, since it is larger than the sum of its proper divisors (131937).

219855 is a wasteful number, since it uses less digits than its factorization.

219855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14665.

The product of its digits is 3600, while the sum is 30.

The square root of 219855 is about 468.8869799856. The cubic root of 219855 is about 60.3548417629.

The spelling of 219855 in words is "two hundred nineteen thousand, eight hundred fifty-five".