173138 has 16 divisors (see below), whose sum is σ = 302400. Its totient is φ = 72816.

The previous prime is 173137. The next prime is 173141. The reversal of 173138 is 831371.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (173137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1088 + ... + 1236.

It is an arithmetic number, because the mean of its divisors is an integer number (18900).

2¹⁷³¹³⁸ is an apocalyptic number.

173138 is a deficient number, since it is larger than the sum of its proper divisors (129262).

173138 is a wasteful number, since it uses less digits than its factorization.

173138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its digits is 504, while the sum is 23.

The square root of 173138 is about 416.0985460201. The cubic root of 173138 is about 55.7353584856.

The spelling of 173138 in words is "one hundred seventy-three thousand, one hundred thirty-eight".