189665275 has 12 divisors (see below), whose sum is σ = 238697272. Its totient is φ = 149466240.

The previous prime is 189665269. The next prime is 189665279. The reversal of 189665275 is 572566981.

It is a de Polignac number, because none of the positive numbers 2^k-189665275 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189665279) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 54942 + ... + 58291.

Almost surely, 2^189665275 is an apocalyptic number.

189665275 is a deficient number, since it is larger than the sum of its proper divisors (49031997).

189665275 is a wasteful number, since it uses less digits than its factorization.

189665275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113310 (or 113305 counting only the distinct ones).

The product of its digits is 907200, while the sum is 49.

The square root of 189665275 is about 13771.9016479207. The cubic root of 189665275 is about 574.5519130345.

The spelling of 189665275 in words is "one hundred eighty-nine million, six hundred sixty-five thousand, two hundred seventy-five".