223143436 has 6 divisors (see below), whose sum is σ = 390501020. Its totient is φ = 111571716.

The previous prime is 223143419. The next prime is 223143449. The reversal of 223143436 is 634341322.

It is a super-3 number, since 3×223143436³ (a number of 26 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27892926 + ... + 27892933.

Almost surely, 2^223143436 is an apocalyptic number.

It is an amenable number.

223143436 is a deficient number, since it is larger than the sum of its proper divisors (167357584).

223143436 is a wasteful number, since it uses less digits than its factorization.

223143436 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55785863 (or 55785861 counting only the distinct ones).

The product of its digits is 10368, while the sum is 28.

The square root of 223143436 is about 14937.9863435471. The cubic root of 223143436 is about 606.5426886428.

Adding to 223143436 its reverse (634341322), we get a palindrome (857484758).

The spelling of 223143436 in words is "two hundred twenty-three million, one hundred forty-three thousand, four hundred thirty-six".