345212 has 12 divisors (see below), whose sum is σ = 690480. Its totient is φ = 147936.

The previous prime is 345193. The next prime is 345221. The reversal of 345212 is 212543.

345212 is an admirable number.

It is an alternating number because its digits alternate between odd and even.

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, 6137 + ... + 6192.

It is an arithmetic number, because the mean of its divisors is an integer number (57540).

2³⁴⁵²¹² is an apocalyptic number.

It is an amenable number.

345212 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

345212 is a wasteful number, since it uses less digits than its factorization.

345212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12340 (or 12338 counting only the distinct ones).

The product of its digits is 240, while the sum is 17.

The square root of 345212 is about 587.5474448928. The cubic root of 345212 is about 70.1501538718.

Adding to 345212 its reverse (212543), we get a palindrome (557755).

The spelling of 345212 in words is "three hundred forty-five thousand, two hundred twelve".