189020659 has 2 divisors, whose sum is σ = 189020660. Its totient is φ = 189020658.

The previous prime is 189020641. The next prime is 189020717. The reversal of 189020659 is 956020981.

It is a weak prime.

It is an emirp because it is prime and its reverse (956020981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 189020659 - 2⁵ = 189020627 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189027659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94510329 + 94510330.

It is an arithmetic number, because the mean of its divisors is an integer number (94510330).

Almost surely, 2^189020659 is an apocalyptic number.

189020659 is a deficient number, since it is larger than the sum of its proper divisors (1).

189020659 is an equidigital number, since it uses as much as digits as its factorization.

189020659 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 38880, while the sum is 40.

The square root of 189020659 is about 13748.4784249022. The cubic root of 189020659 is about 573.9002637235.

The spelling of 189020659 in words is "one hundred eighty-nine million, twenty thousand, six hundred fifty-nine".