189054 has 24 divisors (see below), whose sum is σ = 425880. Its totient is φ = 62856.

The previous prime is 189043. The next prime is 189061. The reversal of 189054 is 450981.

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 congruent number.

It is an unprimeable number.

189054 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

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 11 ways as a sum of consecutive naturals, for example, 292 + ... + 680.

It is an arithmetic number, because the mean of its divisors is an integer number (17745).

2¹⁸⁹⁰⁵⁴ is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 189054, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (212940).

189054 is an abundant number, since it is smaller than the sum of its proper divisors (236826).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

189054 is an equidigital number, since it uses as much as digits as its factorization.

189054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 406 (or 394 counting only the distinct ones).

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

The square root of 189054 is about 434.8034038505. The cubic root of 189054 is about 57.3934004804.

The spelling of 189054 in words is "one hundred eighty-nine thousand, fifty-four".