23153443 has 4 divisors (see below), whose sum is σ = 23253048. Its totient is φ = 23053840.

The previous prime is 23153413. The next prime is 23153461. The reversal of 23153443 is 34435132.

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 23153443 - 2⁹ = 23152931 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23153413) 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, 49453 + ... + 49918.

It is an arithmetic number, because the mean of its divisors is an integer number (5813262).

Almost surely, 2^23153443 is an apocalyptic number.

23153443 is a deficient number, since it is larger than the sum of its proper divisors (99605).

23153443 is an equidigital number, since it uses as much as digits as its factorization.

23153443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99604.

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

The square root of 23153443 is about 4811.8024689299. The cubic root of 23153443 is about 285.0177192225.

Adding to 23153443 its reverse (34435132), we get a palindrome (57588575).

The spelling of 23153443 in words is "twenty-three million, one hundred fifty-three thousand, four hundred forty-three".