28143053 has 8 divisors (see below), whose sum is σ = 29922048. Its totient is φ = 26410384.

The previous prime is 28143013. The next prime is 28143061. The reversal of 28143053 is 35034182.

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

It is a cyclic number.

It is not a de Polignac number, because 28143053 - 2⁸ = 28142797 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28143013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10325 + ... + 12762.

It is an arithmetic number, because the mean of its divisors is an integer number (3740256).

Almost surely, 2^28143053 is an apocalyptic number.

28143053 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

28143053 is a deficient number, since it is larger than the sum of its proper divisors (1778995).

28143053 is a wasteful number, since it uses less digits than its factorization.

28143053 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23163.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 28143053 is about 5305.0026390191. The cubic root of 28143053 is about 304.1751537091.

It can be divided in two parts, 281 and 43053, that added together give a palindrome (43334).

The spelling of 28143053 in words is "twenty-eight million, one hundred forty-three thousand, fifty-three".