223142943 has 16 divisors (see below), whose sum is σ = 300174336. Its totient is φ = 147443520.

The previous prime is 223142921. The next prime is 223142963. The reversal of 223142943 is 349241322.

It is not a de Polignac number, because 223142943 - 2¹⁴ = 223126559 is a prime.

It is a super-3 number, since 3×223142943³ (a number of 26 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 223142943.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223142903) 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, 187396 + ... + 188582.

It is an arithmetic number, because the mean of its divisors is an integer number (18760896).

Almost surely, 2^223142943 is an apocalyptic number.

223142943 is a deficient number, since it is larger than the sum of its proper divisors (77031393).

223142943 is a wasteful number, since it uses less digits than its factorization.

223142943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1694.

The product of its digits is 10368, while the sum is 30.

The square root of 223142943 is about 14937.9698419832. The cubic root of 223142943 is about 606.5422419558.

The spelling of 223142943 in words is "two hundred twenty-three million, one hundred forty-two thousand, nine hundred forty-three".