189115 has 8 divisors (see below), whose sum is σ = 229680. Its totient is φ = 149472.

The previous prime is 189067. The next prime is 189127. The reversal of 189115 is 511981.

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

It is a cyclic number.

It is not a de Polignac number, because 189115 - 2⁹ = 188603 is a prime.

189115 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 189115.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 372 + ... + 718.

It is an arithmetic number, because the mean of its divisors is an integer number (28710).

2¹⁸⁹¹¹⁵ is an apocalyptic number.

189115 is a deficient number, since it is larger than the sum of its proper divisors (40565).

189115 is a wasteful number, since it uses less digits than its factorization.

189115 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461.

The product of its digits is 360, while the sum is 25.

The square root of 189115 is about 434.8735448380. The cubic root of 189115 is about 57.3995726516.

The spelling of 189115 in words is "one hundred eighty-nine thousand, one hundred fifteen".