224012505 has 16 divisors (see below), whose sum is σ = 358795584. Its totient is φ = 119348160.

The previous prime is 224012497. The next prime is 224012507. The reversal of 224012505 is 505210422.

It is a happy number.

224012505 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 224012505 - 2³ = 224012497 is a prime.

It is not an unprimeable number, because it can be changed into a prime (224012507) 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, 8002 + ... + 22628.

It is an arithmetic number, because the mean of its divisors is an integer number (22424724).

Almost surely, 2^224012505 is an apocalyptic number.

It is an amenable number.

224012505 is a deficient number, since it is larger than the sum of its proper divisors (134783079).

224012505 is a wasteful number, since it uses less digits than its factorization.

224012505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15656.

The product of its (nonzero) digits is 800, while the sum is 21.

The square root of 224012505 is about 14967.0473039942. The cubic root of 224012505 is about 607.3290955175.

Adding to 224012505 its reverse (505210422), we get a palindrome (729222927).

The spelling of 224012505 in words is "two hundred twenty-four million, twelve thousand, five hundred five".