189528011 has 2 divisors, whose sum is σ = 189528012. Its totient is φ = 189528010.

The previous prime is 189527999. The next prime is 189528041. The reversal of 189528011 is 110825981.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-189528011 is a prime.

It is a super-2 number, since 2×189528011² = 71841733907232242, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (189528041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94764005 + 94764006.

It is an arithmetic number, because the mean of its divisors is an integer number (94764006).

Almost surely, 2^189528011 is an apocalyptic number.

189528011 is a deficient number, since it is larger than the sum of its proper divisors (1).

189528011 is an equidigital number, since it uses as much as digits as its factorization.

189528011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5760, while the sum is 35.

The square root of 189528011 is about 13766.9172656772. The cubic root of 189528011 is about 574.4132752390.

The spelling of 189528011 in words is "one hundred eighty-nine million, five hundred twenty-eight thousand, eleven".