1543230223 has 4 divisors (see below), whose sum is σ = 1545616080. Its totient is φ = 1540844368.

The previous prime is 1543230209. The next prime is 1543230239. The reversal of 1543230223 is 3220323451.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3220323451 = 2927 ⋅1100213.

It is a cyclic number.

It is not a de Polignac number, because 1543230223 - 2⁵ = 1543230191 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 (1543230023) 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, 1191958 + ... + 1193251.

It is an arithmetic number, because the mean of its divisors is an integer number (386404020).

Almost surely, 2^1543230223 is an apocalyptic number.

1543230223 is a deficient number, since it is larger than the sum of its proper divisors (2385857).

1543230223 is an equidigital number, since it uses as much as digits as its factorization.

1543230223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2385856.

The product of its (nonzero) digits is 4320, while the sum is 25.

The square root of 1543230223 is about 39283.9690331820. The cubic root of 1543230223 is about 1155.6072025757.

Adding to 1543230223 its reverse (3220323451), we get a palindrome (4763553674).

The spelling of 1543230223 in words is "one billion, five hundred forty-three million, two hundred thirty thousand, two hundred twenty-three".