189150 has 48 divisors (see below), whose sum is σ = 510384. Its totient is φ = 46080.

The previous prime is 189149. The next prime is 189151. The reversal of 189150 is 51981.

It is an interprime number because it is at equal distance from previous prime (189149) and next prime (189151).

It is a self number, because there is not a number n which added to its sum of digits gives 189150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189151) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1902 + ... + 1998.

It is an arithmetic number, because the mean of its divisors is an integer number (10633).

2¹⁸⁹¹⁵⁰ is an apocalyptic number.

189150 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 189150, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255192).

189150 is an abundant number, since it is smaller than the sum of its proper divisors (321234).

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

189150 is a wasteful number, since it uses less digits than its factorization.

189150 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 24.

The square root of 189150 is about 434.9137845597. The cubic root of 189150 is about 57.4031134621.

The spelling of 189150 in words is "one hundred eighty-nine thousand, one hundred fifty".