188164147 has 2 divisors, whose sum is σ = 188164148. Its totient is φ = 188164146.

The previous prime is 188164121. The next prime is 188164181. The reversal of 188164147 is 741461881.

188164147 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is an emirp because it is prime and its reverse (741461881) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-188164147 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (188164247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 94082073 + 94082074.

It is an arithmetic number, because the mean of its divisors is an integer number (94082074).

Almost surely, 2^188164147 is an apocalyptic number.

188164147 is a deficient number, since it is larger than the sum of its proper divisors (1).

188164147 is an equidigital number, since it uses as much as digits as its factorization.

188164147 is an evil number, because the sum of its binary digits is even.

The product of its digits is 43008, while the sum is 40.

The square root of 188164147 is about 13717.2937199726. The cubic root of 188164147 is about 573.0321102995.

The spelling of 188164147 in words is "one hundred eighty-eight million, one hundred sixty-four thousand, one hundred forty-seven".