28134453 has 16 divisors (see below), whose sum is σ = 38877696. Its totient is φ = 18078720.

The previous prime is 28134433. The next prime is 28134461. The reversal of 28134453 is 35443182.

It is not a de Polignac number, because 28134453 - 2¹³ = 28126261 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28134453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28134433) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 32401 + ... + 33257.

It is an arithmetic number, because the mean of its divisors is an integer number (2429856).

Almost surely, 2^28134453 is an apocalyptic number.

It is an amenable number.

28134453 is a deficient number, since it is larger than the sum of its proper divisors (10743243).

28134453 is a wasteful number, since it uses less digits than its factorization.

28134453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1244.

The product of its digits is 11520, while the sum is 30.

The square root of 28134453 is about 5304.1920214110. The cubic root of 28134453 is about 304.1441671062.

The spelling of 28134453 in words is "twenty-eight million, one hundred thirty-four thousand, four hundred fifty-three".