23133543 has 4 divisors (see below), whose sum is σ = 30844728. Its totient is φ = 15422360.

The previous prime is 23133497. The next prime is 23133563. The reversal of 23133543 is 34533132.

It is a happy number.

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 23133543 - 2⁸ = 23133287 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23133563) 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, 3855588 + ... + 3855593.

It is an arithmetic number, because the mean of its divisors is an integer number (7711182).

Almost surely, 2^23133543 is an apocalyptic number.

23133543 is a deficient number, since it is larger than the sum of its proper divisors (7711185).

23133543 is an equidigital number, since it uses as much as digits as its factorization.

23133543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7711184.

The product of its digits is 3240, while the sum is 24.

The square root of 23133543 is about 4809.7341922397. The cubic root of 23133543 is about 284.9360398175.

Adding to 23133543 its reverse (34533132), we get a palindrome (57666675).

The spelling of 23133543 in words is "twenty-three million, one hundred thirty-three thousand, five hundred forty-three".