146189 has 6 divisors (see below), whose sum is σ = 153390. Its totient is φ = 139160.

The previous prime is 146173. The next prime is 146191. The reversal of 146189 is 981641.

146189 = T₄₀ + T₄₁ + ... + T₉₇.

146189 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 126025 + 20164 = 355^2 + 142^2 .

It is not a de Polignac number, because 146189 - 2⁴ = 146173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (146389) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2024 + ... + 2094.

It is an arithmetic number, because the mean of its divisors is an integer number (25565).

2¹⁴⁶¹⁸⁹ is an apocalyptic number.

It is an amenable number.

146189 is a deficient number, since it is larger than the sum of its proper divisors (7201).

146189 is an frugal number, since it uses more digits than its factorization.

146189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171 (or 100 counting only the distinct ones).

The product of its digits is 1728, while the sum is 29.

The square root of 146189 is about 382.3467013065. The cubic root of 146189 is about 52.6790860704.

Multiplying 146189 by its sum of digits (29), we get a square (4239481 = 2059²).

146189 divided by its sum of digits (29) gives a square (5041 = 71²).

The spelling of 146189 in words is "one hundred forty-six thousand, one hundred eighty-nine".