165047 has 2 divisors, whose sum is σ = 165048. Its totient is φ = 165046.

The previous prime is 165041. The next prime is 165049. The reversal of 165047 is 740561.

165047 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (740561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165047 - 2¹⁰ = 164023 is a prime.

Together with 165049, it forms a pair of twin primes.

It is a Chen prime.

It is a nialpdrome in base 14.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (165041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82523 + 82524.

It is an arithmetic number, because the mean of its divisors is an integer number (82524).

2¹⁶⁵⁰⁴⁷ is an apocalyptic number.

165047 is a deficient number, since it is larger than the sum of its proper divisors (1).

165047 is an equidigital number, since it uses as much as digits as its factorization.

165047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 165047 is about 406.2597691133. The cubic root of 165047 is about 54.8532728260.

The spelling of 165047 in words is "one hundred sixty-five thousand, forty-seven".