223125636 has 12 divisors (see below), whose sum is σ = 520626512. Its totient is φ = 74375208.

The previous prime is 223125593. The next prime is 223125641. The reversal of 223125636 is 636521322.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×223125636³ (a number of 26 digits) contains 333 as substring.

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, 9296890 + ... + 9296913.

Almost surely, 2^223125636 is an apocalyptic number.

It is an amenable number.

223125636 is an abundant number, since it is smaller than the sum of its proper divisors (297500876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

223125636 is a wasteful number, since it uses less digits than its factorization.

223125636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18593810 (or 18593808 counting only the distinct ones).

The product of its digits is 12960, while the sum is 30.

The square root of 223125636 is about 14937.3905351638. The cubic root of 223125636 is about 606.5265603814.

Adding to 223125636 its reverse (636521322), we get a palindrome (859646958).

The spelling of 223125636 in words is "two hundred twenty-three million, one hundred twenty-five thousand, six hundred thirty-six".