223420143 has 8 divisors (see below), whose sum is σ = 302339968. Its totient is φ = 146723544.

The previous prime is 223420139. The next prime is 223420151. The reversal of 223420143 is 341024322.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 223420143 - 2² = 223420139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223420133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555571 + ... + 555972.

It is an arithmetic number, because the mean of its divisors is an integer number (37792496).

Almost surely, 2^223420143 is an apocalyptic number.

223420143 is a deficient number, since it is larger than the sum of its proper divisors (78919825).

223420143 is a wasteful number, since it uses less digits than its factorization.

223420143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111613.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 223420143 is about 14947.2453314984. The cubic root of 223420143 is about 606.7932976749.

Adding to 223420143 its reverse (341024322), we get a palindrome (564444465).

The spelling of 223420143 in words is "two hundred twenty-three million, four hundred twenty thousand, one hundred forty-three".