189315 has 24 divisors (see below), whose sum is σ = 375648. Its totient is φ = 86400.

The previous prime is 189311. The next prime is 189337. The reversal of 189315 is 513981.

189315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 189315 - 2² = 189311 is a prime.

189315 is a lucky number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 189315.

It is not an unprimeable number, because it can be changed into a prime (189311) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15 + ... + 615.

It is an arithmetic number, because the mean of its divisors is an integer number (15652).

2¹⁸⁹³¹⁵ is an apocalyptic number.

189315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

189315 is a deficient number, since it is larger than the sum of its proper divisors (186333).

189315 is a wasteful number, since it uses less digits than its factorization.

189315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 619 (or 616 counting only the distinct ones).

The product of its digits is 1080, while the sum is 27.

The square root of 189315 is about 435.1034359782. The cubic root of 189315 is about 57.4197999736.

The spelling of 189315 in words is "one hundred eighty-nine thousand, three hundred fifteen".