28153543 has 8 divisors (see below), whose sum is σ = 30775680. Its totient is φ = 25541880.

The previous prime is 28153537. The next prime is 28153583. The reversal of 28153543 is 34535182.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28153543 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 (28153583) 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, 3678 + ... + 8356.

It is an arithmetic number, because the mean of its divisors is an integer number (3846960).

Almost surely, 2^28153543 is an apocalyptic number.

28153543 is a deficient number, since it is larger than the sum of its proper divisors (2622137).

28153543 is a wasteful number, since it uses less digits than its factorization.

28153543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5237.

The product of its digits is 14400, while the sum is 31.

The square root of 28153543 is about 5305.9912363290. The cubic root of 28153543 is about 304.2129416136.

It can be divided in two parts, 281 and 53543, that added together give a square (53824 = 232²).

The spelling of 28153543 in words is "twenty-eight million, one hundred fifty-three thousand, five hundred forty-three".