523121224 has 16 divisors (see below), whose sum is σ = 1032476400. Its totient is φ = 247794192.

The previous prime is 523121219. The next prime is 523121231. The reversal of 523121224 is 422121325.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 523121195 and 523121204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1720642 + ... + 1720945.

It is an arithmetic number, because the mean of its divisors is an integer number (64529775).

Almost surely, 2^523121224 is an apocalyptic number.

It is an amenable number.

523121224 is a deficient number, since it is larger than the sum of its proper divisors (509355176).

523121224 is a wasteful number, since it uses less digits than its factorization.

523121224 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3441612 (or 3441608 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 523121224 is about 22871.8434762045. The cubic root of 523121224 is about 805.7508645528.

Adding to 523121224 its reverse (422121325), we get a palindrome (945242549).

The spelling of 523121224 in words is "five hundred twenty-three million, one hundred twenty-one thousand, two hundred twenty-four".