345173 has 8 divisors (see below), whose sum is σ = 373920. Its totient is φ = 317520.

The previous prime is 345143. The next prime is 345181. The reversal of 345173 is 371543.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 345173 - 2⁶ = 345109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 458 + ... + 948.

It is an arithmetic number, because the mean of its divisors is an integer number (46740).

2³⁴⁵¹⁷³ is an apocalyptic number.

It is an amenable number.

345173 is a deficient number, since it is larger than the sum of its proper divisors (28747).

345173 is a wasteful number, since it uses less digits than its factorization.

345173 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 547.

The product of its digits is 1260, while the sum is 23.

The square root of 345173 is about 587.5142551462. The cubic root of 345173 is about 70.1475120565.

It can be divided in two parts, 345 and 173, that multiplied together give a triangular number (59685 = T₃₄₅).

The spelling of 345173 in words is "three hundred forty-five thousand, one hundred seventy-three".