189668183 has 2 divisors, whose sum is σ = 189668184. Its totient is φ = 189668182.

The previous prime is 189668159. The next prime is 189668191. The reversal of 189668183 is 381866981.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189668183 - 2⁶ = 189668119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189668123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94834091 + 94834092.

It is an arithmetic number, because the mean of its divisors is an integer number (94834092).

Almost surely, 2^189668183 is an apocalyptic number.

189668183 is a deficient number, since it is larger than the sum of its proper divisors (1).

189668183 is an equidigital number, since it uses as much as digits as its factorization.

189668183 is an evil number, because the sum of its binary digits is even.

The product of its digits is 497664, while the sum is 50.

The square root of 189668183 is about 13772.0072248021. The cubic root of 189668183 is about 574.5548494154.

The spelling of 189668183 in words is "one hundred eighty-nine million, six hundred sixty-eight thousand, one hundred eighty-three".