224115 has 16 divisors (see below), whose sum is σ = 365568. Its totient is φ = 117216.

The previous prime is 224113. The next prime is 224129. The reversal of 224115 is 511422.

224115 is a nontrivial binomial coefficient, being equal to C(670, 2).

It is not a de Polignac number, because 224115 - 2¹ = 224113 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a nialpdrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 224094 and 224103.

It is not an unprimeable number, because it can be changed into a prime (224113) 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, 894 + ... + 1116.

It is an arithmetic number, because the mean of its divisors is an integer number (22848).

2²²⁴¹¹⁵ is an apocalyptic number.

224115 is the 669-th triangular number and also the 335-th hexagonal number.

224115 is a deficient number, since it is larger than the sum of its proper divisors (141453).

224115 is a wasteful number, since it uses less digits than its factorization.

224115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298.

The product of its digits is 80, while the sum is 15.

The square root of 224115 is about 473.4078579829. The cubic root of 224115 is about 60.7421707467.

224115 divided by its sum of digits (15) gives a palindrome (14941).

Adding to 224115 its reverse (511422), we get a palindrome (735537).

The spelling of 224115 in words is "two hundred twenty-four thousand, one hundred fifteen".