223144431 has 16 divisors (see below), whose sum is σ = 320371200. Its totient is φ = 137637248.

The previous prime is 223144387. The next prime is 223144433. The reversal of 223144431 is 134441322.

It is a cyclic number.

It is not a de Polignac number, because 223144431 - 2⁹ = 223143919 is a prime.

It is a super-3 number, since 3×223144431³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223144433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34071 + ... + 40088.

It is an arithmetic number, because the mean of its divisors is an integer number (20023200).

Almost surely, 2^223144431 is an apocalyptic number.

223144431 is a deficient number, since it is larger than the sum of its proper divisors (97226769).

223144431 is a wasteful number, since it uses less digits than its factorization.

223144431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74238.

The product of its digits is 2304, while the sum is 24.

The square root of 223144431 is about 14938.0196478650. The cubic root of 223144431 is about 606.5435901691.

Adding to 223144431 its reverse (134441322), we get a palindrome (357585753).

The spelling of 223144431 in words is "two hundred twenty-three million, one hundred forty-four thousand, four hundred thirty-one".