345170 has 16 divisors (see below), whose sum is σ = 710208. Its totient is φ = 118320.

The previous prime is 345143. The next prime is 345181. The reversal of 345170 is 71543.

It is a happy number.

It is a Curzon number.

It is an unprimeable number.

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, 2396 + ... + 2535.

It is an arithmetic number, because the mean of its divisors is an integer number (44388).

2³⁴⁵¹⁷⁰ is an apocalyptic number.

345170 is an abundant number, since it is smaller than the sum of its proper divisors (365038).

It is a weird number, because it is abundant, but not a pseudoperfect number.

345170 is a wasteful number, since it uses less digits than its factorization.

345170 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4945.

The product of its (nonzero) digits is 420, while the sum is 20.

The square root of 345170 is about 587.5117020111. The cubic root of 345170 is about 70.1473088317.

It can be divided in two parts, 345 and 170, that added together give a palindrome (515).

The spelling of 345170 in words is "three hundred forty-five thousand, one hundred seventy".