23204143 has 4 divisors (see below), whose sum is σ = 23831320. Its totient is φ = 22576968.

The previous prime is 23204131. The next prime is 23204179. The reversal of 23204143 is 34140232.

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 23204143 - 2¹³ = 23195951 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23204143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23204113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313533 + ... + 313606.

It is an arithmetic number, because the mean of its divisors is an integer number (5957830).

Almost surely, 2^23204143 is an apocalyptic number.

23204143 is a deficient number, since it is larger than the sum of its proper divisors (627177).

23204143 is an equidigital number, since it uses as much as digits as its factorization.

23204143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 627176.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 23204143 is about 4817.0678840971. The cubic root of 23204143 is about 285.2256057075.

Adding to 23204143 its reverse (34140232), we get a palindrome (57344375).

The spelling of 23204143 in words is "twenty-three million, two hundred four thousand, one hundred forty-three".