223974143 has 4 divisors (see below), whose sum is σ = 229182888. Its totient is φ = 218765400.

The previous prime is 223974097. The next prime is 223974151. The reversal of 223974143 is 341479322.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 223974143 - 2²⁰ = 222925567 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 (223974193) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2604308 + ... + 2604393.

It is an arithmetic number, because the mean of its divisors is an integer number (57295722).

Almost surely, 2^223974143 is an apocalyptic number.

223974143 is a deficient number, since it is larger than the sum of its proper divisors (5208745).

223974143 is an equidigital number, since it uses as much as digits as its factorization.

223974143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5208744.

The product of its digits is 36288, while the sum is 35.

The square root of 223974143 is about 14965.7657004244. The cubic root of 223974143 is about 607.2944252970.

The spelling of 223974143 in words is "two hundred twenty-three million, nine hundred seventy-four thousand, one hundred forty-three".