189665283 has 8 divisors (see below), whose sum is σ = 252963088. Its totient is φ = 126405504.

The previous prime is 189665279. The next prime is 189665327. The reversal of 189665283 is 382566981.

It is a happy number.

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

It is not a de Polignac number, because 189665283 - 2² = 189665279 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (189665213) 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, 5535 + ... + 20247.

It is an arithmetic number, because the mean of its divisors is an integer number (31620386).

Almost surely, 2^189665283 is an apocalyptic number.

189665283 is a deficient number, since it is larger than the sum of its proper divisors (63297805).

189665283 is a wasteful number, since it uses less digits than its factorization.

With its successor (189665284) it forms an eRAP, since the sums of their prime factors are consecutive (19013 and 19014).

189665283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19013.

The product of its digits is 622080, while the sum is 48.

The square root of 189665283 is about 13771.9019383671. The cubic root of 189665283 is about 574.5519211127.

The spelling of 189665283 in words is "one hundred eighty-nine million, six hundred sixty-five thousand, two hundred eighty-three".