23433143 has 4 divisors (see below), whose sum is σ = 23458248. Its totient is φ = 23408040.

The previous prime is 23433139. The next prime is 23433161. The reversal of 23433143 is 34133432.

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 23433143 - 2² = 23433139 is a prime.

It is a super-2 number, since 2×23433143² = 1098224381716898, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23433133) 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, 11096 + ... + 13037.

It is an arithmetic number, because the mean of its divisors is an integer number (5864562).

Almost surely, 2^23433143 is an apocalyptic number.

23433143 is a deficient number, since it is larger than the sum of its proper divisors (25105).

23433143 is an equidigital number, since it uses as much as digits as its factorization.

23433143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25104.

The product of its digits is 2592, while the sum is 23.

The square root of 23433143 is about 4840.7791728192. The cubic root of 23433143 is about 286.1608261351.

Adding to 23433143 its reverse (34133432), we get a palindrome (57566575).

The spelling of 23433143 in words is "twenty-three million, four hundred thirty-three thousand, one hundred forty-three".