223140343 has 2 divisors, whose sum is σ = 223140344. Its totient is φ = 223140342.

The previous prime is 223140329. The next prime is 223140371. The reversal of 223140343 is 343041322.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223140343 - 2⁹ = 223139831 is a prime.

It is a super-3 number, since 3×223140343³ (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 a weakly prime, because it can be changed into another prime (223140383) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111570171 + 111570172.

It is an arithmetic number, because the mean of its divisors is an integer number (111570172).

Almost surely, 2^223140343 is an apocalyptic number.

223140343 is a deficient number, since it is larger than the sum of its proper divisors (1).

223140343 is an equidigital number, since it uses as much as digits as its factorization.

223140343 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 223140343 is about 14937.8828151783. The cubic root of 223140343 is about 606.5398861924.

Adding to 223140343 its reverse (343041322), we get a palindrome (566181665).

The spelling of 223140343 in words is "two hundred twenty-three million, one hundred forty thousand, three hundred forty-three".