173842 has 8 divisors (see below), whose sum is σ = 276156. Its totient is φ = 81792.

The previous prime is 173839. The next prime is 173851. The reversal of 173842 is 248371.

It can be written as a sum of positive squares in 2 ways, for example, as 167281 + 6561 = 409^2 + 81^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2523 + ... + 2590.

2¹⁷³⁸⁴² is an apocalyptic number.

173842 is a deficient number, since it is larger than the sum of its proper divisors (102314).

173842 is a wasteful number, since it uses less digits than its factorization.

173842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5132.

The product of its digits is 1344, while the sum is 25.

The square root of 173842 is about 416.9436412754. The cubic root of 173842 is about 55.8107985593.

Subtracting 173842 from its reverse (248371), we obtain a square (74529 = 273²).

The spelling of 173842 in words is "one hundred seventy-three thousand, eight hundred forty-two".