223540012 has 6 divisors (see below), whose sum is σ = 391195028. Its totient is φ = 111770004.

The previous prime is 223540007. The next prime is 223540027. The reversal of 223540012 is 210045322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27942498 + ... + 27942505.

Almost surely, 2^223540012 is an apocalyptic number.

It is an amenable number.

223540012 is a deficient number, since it is larger than the sum of its proper divisors (167655016).

223540012 is a wasteful number, since it uses less digits than its factorization.

223540012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55885007 (or 55885005 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 223540012 is about 14951.2545293029. The cubic root of 223540012 is about 606.9017968470.

Adding to 223540012 its reverse (210045322), we get a palindrome (433585334).

The spelling of 223540012 in words is "two hundred twenty-three million, five hundred forty thousand, twelve".