215485 has 8 divisors (see below), whose sum is σ = 262656. Its totient is φ = 169680.

The previous prime is 215483. The next prime is 215497. The reversal of 215485 is 584512.

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

It is not a de Polignac number, because 215485 - 2¹ = 215483 is a prime.

It is a Duffinian 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 (215483) by changing a digit.

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, 52 + ... + 658.

It is an arithmetic number, because the mean of its divisors is an integer number (32832).

2²¹⁵⁴⁸⁵ is an apocalyptic number.

It is an amenable number.

215485 is a deficient number, since it is larger than the sum of its proper divisors (47171).

215485 is an equidigital number, since it uses as much as digits as its factorization.

215485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 683.

The product of its digits is 1600, while the sum is 25.

The square root of 215485 is about 464.2036191156. The cubic root of 215485 is about 59.9522768666.

Adding to 215485 its reverse (584512), we get a palindrome (799997).

The spelling of 215485 in words is "two hundred fifteen thousand, four hundred eighty-five".