188895011 has 2 divisors, whose sum is σ = 188895012. Its totient is φ = 188895010.

The previous prime is 188894971. The next prime is 188895029. The reversal of 188895011 is 110598881.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188895011 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 188895011.

It is not a weakly prime, because it can be changed into another prime (188895061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94447505 + 94447506.

It is an arithmetic number, because the mean of its divisors is an integer number (94447506).

Almost surely, 2^188895011 is an apocalyptic number.

188895011 is a deficient number, since it is larger than the sum of its proper divisors (1).

188895011 is an equidigital number, since it uses as much as digits as its factorization.

188895011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 41.

The square root of 188895011 is about 13743.9081414276. The cubic root of 188895011 is about 573.7730723283.

The spelling of 188895011 in words is "one hundred eighty-eight million, eight hundred ninety-five thousand, eleven".