188766041 has 2 divisors, whose sum is σ = 188766042. Its totient is φ = 188766040.

The previous prime is 188766029. The next prime is 188766043. The reversal of 188766041 is 140667881.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 120538441 + 68227600 = 10979^2 + 8260^2 .

It is an emirp because it is prime and its reverse (140667881) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188766041 is a prime.

It is a Sophie Germain prime.

Together with 188766043, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 188766041.

It is not a weakly prime, because it can be changed into another prime (188766043) 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, 94383020 + 94383021.

It is an arithmetic number, because the mean of its divisors is an integer number (94383021).

Almost surely, 2^188766041 is an apocalyptic number.

It is an amenable number.

188766041 is a deficient number, since it is larger than the sum of its proper divisors (1).

188766041 is an equidigital number, since it uses as much as digits as its factorization.

188766041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 188766041 is about 13739.2154433941. The cubic root of 188766041 is about 573.6424594542.

The spelling of 188766041 in words is "one hundred eighty-eight million, seven hundred sixty-six thousand, forty-one".