215441 has 16 divisors (see below), whose sum is σ = 259200. Its totient is φ = 177408.

The previous prime is 215417. The next prime is 215443. The reversal of 215441 is 144512.

215441 = 8³ + 9³ + ... + 30³.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-215441 is a prime.

It is a super-3 number, since 3×215441³ = 29998968603033363, which contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (215443) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7415 + ... + 7443.

It is an arithmetic number, because the mean of its divisors is an integer number (16200).

2²¹⁵⁴⁴¹ is an apocalyptic number.

It is an amenable number.

215441 is a deficient number, since it is larger than the sum of its proper divisors (43759).

215441 is a wasteful number, since it uses less digits than its factorization.

215441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88.

The product of its digits is 160, while the sum is 17.

The square root of 215441 is about 464.1562237006. The cubic root of 215441 is about 59.9481960261.

Adding to 215441 its reverse (144512), we get a palindrome (359953).

It can be divided in two parts, 215 and 441, that added together give a palindrome (656).

The spelling of 215441 in words is "two hundred fifteen thousand, four hundred forty-one".