28153 has 4 divisors (see below), whose sum is σ = 28800. Its totient is φ = 27508.

The previous prime is 28151. The next prime is 28163. The reversal of 28153 is 35182.

It is a happy number.

It is the 69-th star number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28153 - 2¹ = 28151 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 28153.

It is not an unprimeable number, because it can be changed into a prime (28151) 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, 253 + ... + 346.

It is an arithmetic number, because the mean of its divisors is an integer number (7200).

2²⁸¹⁵³ is an apocalyptic number.

It is an amenable number.

28153 is a deficient number, since it is larger than the sum of its proper divisors (647).

28153 is an equidigital number, since it uses as much as digits as its factorization.

28153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646.

The product of its digits is 240, while the sum is 19.

The square root of 28153 is about 167.7885574168. The cubic root of 28153 is about 30.4210985807.

It can be divided in two parts, 28 and 153, that added together give a palindrome (181).

The spelling of 28153 in words is "twenty-eight thousand, one hundred fifty-three".