189064 has 8 divisors (see below), whose sum is σ = 354510. Its totient is φ = 94528.

The previous prime is 189061. The next prime is 189067. The reversal of 189064 is 460981.

It is an interprime number because it is at equal distance from previous prime (189061) and next prime (189067).

It can be written as a sum of positive squares in only one way, i.e., 122500 + 66564 = 350^2 + 258^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11809 + ... + 11824.

2¹⁸⁹⁰⁶⁴ is an apocalyptic number.

It is an amenable number.

189064 is a deficient number, since it is larger than the sum of its proper divisors (165446).

189064 is a wasteful number, since it uses less digits than its factorization.

189064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23639 (or 23635 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 28.

The square root of 189064 is about 434.8149031485. The cubic root of 189064 is about 57.3944124027.

The spelling of 189064 in words is "one hundred eighty-nine thousand, sixty-four".