173149 has 2 divisors, whose sum is σ = 173150. Its totient is φ = 173148.

The previous prime is 173141. The next prime is 173177. The reversal of 173149 is 941371.

173149 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145924 + 27225 = 382^2 + 165^2 .

It is a cyclic number.

It is not a de Polignac number, because 173149 - 2³ = 173141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (173141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 86574 + 86575.

It is an arithmetic number, because the mean of its divisors is an integer number (86575).

2¹⁷³¹⁴⁹ is an apocalyptic number.

It is an amenable number.

173149 is a deficient number, since it is larger than the sum of its proper divisors (1).

173149 is an equidigital number, since it uses as much as digits as its factorization.

173149 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 756, while the sum is 25.

The square root of 173149 is about 416.1117638327. Note that the first 3 decimals coincide. The cubic root of 173149 is about 55.7365388079.

The spelling of 173149 in words is "one hundred seventy-three thousand, one hundred forty-nine".