165350219 has 2 divisors, whose sum is σ = 165350220. Its totient is φ = 165350218.

The previous prime is 165350209. The next prime is 165350233. The reversal of 165350219 is 912053561.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 165350219 - 2⁸ = 165349963 is a prime.

It is a super-2 number, since 2×165350219² = 54681389846695922, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (165350209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82675109 + 82675110.

It is an arithmetic number, because the mean of its divisors is an integer number (82675110).

Almost surely, 2^165350219 is an apocalyptic number.

165350219 is a deficient number, since it is larger than the sum of its proper divisors (1).

165350219 is an equidigital number, since it uses as much as digits as its factorization.

165350219 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 32.

The square root of 165350219 is about 12858.8576086680. The cubic root of 165350219 is about 548.8684382768.

The spelling of 165350219 in words is "one hundred sixty-five million, three hundred fifty thousand, two hundred nineteen".