215005 has 8 divisors (see below), whose sum is σ = 294912. Its totient is φ = 147408.

The previous prime is 214993. The next prime is 215051. The reversal of 215005 is 500512.

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 215005 - 2¹³ = 206813 is a prime.

It is a Duffinian number.

215005 is a lucky number.

It is a plaindrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3037 + ... + 3106.

It is an arithmetic number, because the mean of its divisors is an integer number (36864).

2²¹⁵⁰⁰⁵ is an apocalyptic number.

It is an amenable number.

215005 is a deficient number, since it is larger than the sum of its proper divisors (79907).

215005 is an equidigital number, since it uses as much as digits as its factorization.

215005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155.

The product of its (nonzero) digits is 50, while the sum is 13.

The square root of 215005 is about 463.6863163821. The cubic root of 215005 is about 59.9077285427.

Adding to 215005 its reverse (500512), we get a palindrome (715517).

The spelling of 215005 in words is "two hundred fifteen thousand, five".