23000143 has 4 divisors (see below), whose sum is σ = 23048640. Its totient is φ = 22951648.

The previous prime is 23000137. The next prime is 23000189. The reversal of 23000143 is 34100032.

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 23000143 - 2⁹ = 22999631 is a prime.

It is a Duffinian number.

23000143 is a modest number, since divided by 143 gives 23 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23000113) 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, 23530 + ... + 24487.

It is an arithmetic number, because the mean of its divisors is an integer number (5762160).

Almost surely, 2^23000143 is an apocalyptic number.

23000143 is a deficient number, since it is larger than the sum of its proper divisors (48497).

23000143 is an equidigital number, since it uses as much as digits as its factorization.

23000143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48496.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 23000143 is about 4795.8464320702. The cubic root of 23000143 is about 284.3872873651.

Adding to 23000143 its reverse (34100032), we get a palindrome (57100175).

The spelling of 23000143 in words is "twenty-three million, one hundred forty-three", and thus it is an aban number.