215482 has 4 divisors (see below), whose sum is σ = 323226. Its totient is φ = 107740.

The previous prime is 215471. The next prime is 215483. The reversal of 215482 is 284512.

215482 is nontrivially palindromic in base 12.

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

It can be written as a sum of positive squares in only one way, i.e., 137641 + 77841 = 371^2 + 279^2 .

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (215483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53869 + ... + 53872.

2²¹⁵⁴⁸² is an apocalyptic number.

215482 is a deficient number, since it is larger than the sum of its proper divisors (107744).

215482 is a wasteful number, since it uses less digits than its factorization.

215482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107743.

The product of its digits is 640, while the sum is 22.

The square root of 215482 is about 464.2003877637. The cubic root of 215482 is about 59.9519986451.

Adding to 215482 its reverse (284512), we get a palindrome (499994).

The spelling of 215482 in words is "two hundred fifteen thousand, four hundred eighty-two".