165073187 has 2 divisors, whose sum is σ = 165073188. Its totient is φ = 165073186.

The previous prime is 165073151. The next prime is 165073189. The reversal of 165073187 is 781370561.

165073187 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 (781370561) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 165073187 - 2¹⁸ = 164811043 is a prime.

Together with 165073189, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 165073187.

It is not a weakly prime, because it can be changed into another prime (165073189) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 82536593 + 82536594.

It is an arithmetic number, because the mean of its divisors is an integer number (82536594).

Almost surely, 2^165073187 is an apocalyptic number.

165073187 is a deficient number, since it is larger than the sum of its proper divisors (1).

165073187 is an equidigital number, since it uses as much as digits as its factorization.

165073187 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 35280, while the sum is 38.

The square root of 165073187 is about 12848.0810629448. The cubic root of 165073187 is about 548.5617375062.

The spelling of 165073187 in words is "one hundred sixty-five million, seventy-three thousand, one hundred eighty-seven".