189165249 has 72 divisors (see below), whose sum is σ = 343337280. Its totient is φ = 98257536.

The previous prime is 189165247. The next prime is 189165253. The reversal of 189165249 is 942561981.

189165249 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 189165249 - 2¹ = 189165247 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (189165241) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 1160442 + ... + 1160604.

Almost surely, 2^189165249 is an apocalyptic number.

It is an amenable number.

189165249 is a deficient number, since it is larger than the sum of its proper divisors (154172031).

189165249 is a wasteful number, since it uses less digits than its factorization.

189165249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311 (or 295 counting only the distinct ones).

The product of its digits is 155520, while the sum is 45.

The square root of 189165249 is about 13753.7358197691. The cubic root of 189165249 is about 574.0465600599.

The spelling of 189165249 in words is "one hundred eighty-nine million, one hundred sixty-five thousand, two hundred forty-nine".