54189 has 12 divisors (see below), whose sum is σ = 81536. Its totient is φ = 35964.

The previous prime is 54181. The next prime is 54193. The reversal of 54189 is 98145.

It is not a de Polignac number, because 54189 - 2³ = 54181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

54189 is a lucky number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 54189.

It is not an unprimeable number, because it can be changed into a prime (54181) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 132 + ... + 354.

2⁵⁴¹⁸⁹ is an apocalyptic number.

It is an amenable number.

54189 is a deficient number, since it is larger than the sum of its proper divisors (27347).

54189 is an equidigital number, since it uses as much as digits as its factorization.

54189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238 (or 226 counting only the distinct ones).

The product of its digits is 1440, while the sum is 27.

The square root of 54189 is about 232.7853088148. The cubic root of 54189 is about 37.8416773866.

Subtracting 54189 from its reverse (98145), we obtain a triangular number (43956 = T₂₉₆).

It can be divided in two parts, 541 and 89, that added together give a triangular number (630 = T₃₅).

The spelling of 54189 in words is "fifty-four thousand, one hundred eighty-nine".