189006193 has 2 divisors, whose sum is σ = 189006194. Its totient is φ = 189006192.

The previous prime is 189006143. The next prime is 189006211. The reversal of 189006193 is 391600981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 172869904 + 16136289 = 13148^2 + 4017^2 .

It is a cyclic number.

It is not a de Polignac number, because 189006193 - 2⁹ = 189005681 is a prime.

It is not a weakly prime, because it can be changed into another prime (189006143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94503096 + 94503097.

It is an arithmetic number, because the mean of its divisors is an integer number (94503097).

Almost surely, 2^189006193 is an apocalyptic number.

It is an amenable number.

189006193 is a deficient number, since it is larger than the sum of its proper divisors (1).

189006193 is an equidigital number, since it uses as much as digits as its factorization.

189006193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 11664, while the sum is 37.

The square root of 189006193 is about 13747.9523202548. The cubic root of 189006193 is about 573.8856229023.

The spelling of 189006193 in words is "one hundred eighty-nine million, six thousand, one hundred ninety-three".