39189 has 4 divisors (see below), whose sum is σ = 52256. Its totient is φ = 26124.

The previous prime is 39181. The next prime is 39191. The reversal of 39189 is 98193.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 39189 - 2³ = 39181 is a prime.

It is an Ulam number.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39181) 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 in 3 ways as a sum of consecutive naturals, for example, 6529 + ... + 6534.

It is an arithmetic number, because the mean of its divisors is an integer number (13064).

2³⁹¹⁸⁹ is an apocalyptic number.

It is an amenable number.

39189 is a deficient number, since it is larger than the sum of its proper divisors (13067).

39189 is a wasteful number, since it uses less digits than its factorization.

39189 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13066.

The product of its digits is 1944, while the sum is 30.

The square root of 39189 is about 197.9621175882. The cubic root of 39189 is about 33.9668072830.

The spelling of 39189 in words is "thirty-nine thousand, one hundred eighty-nine".