189015 has 8 divisors (see below), whose sum is σ = 302448. Its totient is φ = 100800.

The previous prime is 189011. The next prime is 189017. The reversal of 189015 is 510981.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 189015 - 2² = 189011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (189011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6286 + ... + 6315.

It is an arithmetic number, because the mean of its divisors is an integer number (37806).

2¹⁸⁹⁰¹⁵ is an apocalyptic number.

189015 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189015 is a deficient number, since it is larger than the sum of its proper divisors (113433).

189015 is a wasteful number, since it uses less digits than its factorization.

189015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12609.

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

The square root of 189015 is about 434.7585536824. The cubic root of 189015 is about 57.3894536424.

Adding to 189015 its reverse (510981), we get a palindrome (699996).

The spelling of 189015 in words is "one hundred eighty-nine thousand, fifteen".