189020063 has 2 divisors, whose sum is σ = 189020064. Its totient is φ = 189020062.

The previous prime is 189020053. The next prime is 189020071. The reversal of 189020063 is 360020981.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 189020063 - 2²² = 184825759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (189020053) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94510031 + 94510032.

It is an arithmetic number, because the mean of its divisors is an integer number (94510032).

Almost surely, 2^189020063 is an apocalyptic number.

189020063 is a deficient number, since it is larger than the sum of its proper divisors (1).

189020063 is an equidigital number, since it uses as much as digits as its factorization.

189020063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The square root of 189020063 is about 13748.4567497592. The cubic root of 189020063 is about 573.8996605356.

The spelling of 189020063 in words is "one hundred eighty-nine million, twenty thousand, sixty-three".