165294163 has 2 divisors, whose sum is σ = 165294164. Its totient is φ = 165294162.

The previous prime is 165294127. The next prime is 165294197. The reversal of 165294163 is 361492561.

It is a strong prime.

It is an emirp because it is prime and its reverse (361492561) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-165294163 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is not a weakly prime, because it can be changed into another prime (165294463) 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, 82647081 + 82647082.

It is an arithmetic number, because the mean of its divisors is an integer number (82647082).

Almost surely, 2^165294163 is an apocalyptic number.

165294163 is a deficient number, since it is larger than the sum of its proper divisors (1).

165294163 is an equidigital number, since it uses as much as digits as its factorization.

165294163 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 38880, while the sum is 37.

The square root of 165294163 is about 12856.6777590480. The cubic root of 165294163 is about 548.8064066148.

The spelling of 165294163 in words is "one hundred sixty-five million, two hundred ninety-four thousand, one hundred sixty-three".