5121224 has 8 divisors (see below), whose sum is σ = 9602310. Its totient is φ = 2560608.

The previous prime is 5121223. The next prime is 5121227. The reversal of 5121224 is 4221215.

It can be written as a sum of positive squares in only one way, i.e., 4452100 + 669124 = 2110^2 + 818^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (5121223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 320069 + ... + 320084.

Almost surely, 2^5121224 is an apocalyptic number.

It is an amenable number.

5121224 is a deficient number, since it is larger than the sum of its proper divisors (4481086).

5121224 is a wasteful number, since it uses less digits than its factorization.

5121224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 640159 (or 640155 counting only the distinct ones).

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

The square root of 5121224 is about 2263.0121519780. The cubic root of 5121224 is about 172.3685086294.

Adding to 5121224 its reverse (4221215), we get a palindrome (9342439).

Subtracting from 5121224 its reverse (4221215), we obtain a palindrome (900009).

The spelling of 5121224 in words is "five million, one hundred twenty-one thousand, two hundred twenty-four".