23533145 has 8 divisors (see below), whose sum is σ = 28288320. Its totient is φ = 18794160.

The previous prime is 23533127. The next prime is 23533171. The reversal of 23533145 is 54133532.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 23533145 - 2⁸ = 23532889 is a prime.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575 + ... + 6884.

It is an arithmetic number, because the mean of its divisors is an integer number (3536040).

Almost surely, 2^23533145 is an apocalyptic number.

It is an amenable number.

23533145 is a deficient number, since it is larger than the sum of its proper divisors (4755175).

23533145 is an equidigital number, since it uses as much as digits as its factorization.

23533145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8095.

The product of its digits is 5400, while the sum is 26.

The square root of 23533145 is about 4851.0972985501. The cubic root of 23533145 is about 286.5673165427.

Adding to 23533145 its reverse (54133532), we get a palindrome (77666677).

The spelling of 23533145 in words is "twenty-three million, five hundred thirty-three thousand, one hundred forty-five".