165064147 has 2 divisors, whose sum is σ = 165064148. Its totient is φ = 165064146.

The previous prime is 165064129. The next prime is 165064157. The reversal of 165064147 is 741460561.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 165064147 - 2⁷ = 165064019 is a prime.

It is not a weakly prime, because it can be changed into another prime (165064157) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82532073 + 82532074.

It is an arithmetic number, because the mean of its divisors is an integer number (82532074).

Almost surely, 2^165064147 is an apocalyptic number.

165064147 is a deficient number, since it is larger than the sum of its proper divisors (1).

165064147 is an equidigital number, since it uses as much as digits as its factorization.

165064147 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 165064147 is about 12847.7292546193. The cubic root of 165064147 is about 548.5517235870.

The spelling of 165064147 in words is "one hundred sixty-five million, sixty-four thousand, one hundred forty-seven".