345243 has 8 divisors (see below), whose sum is σ = 463888. Its totient is φ = 228384.

The previous prime is 345229. The next prime is 345259. The reversal of 345243 is 342543.

It is a happy number.

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

It is not a de Polignac number, because 345243 - 2⁴ = 345227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345263) 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, 105 + ... + 837.

It is an arithmetic number, because the mean of its divisors is an integer number (57986).

2³⁴⁵²⁴³ is an apocalyptic number.

345243 is a deficient number, since it is larger than the sum of its proper divisors (118645).

345243 is a wasteful number, since it uses less digits than its factorization.

345243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893.

The product of its digits is 1440, while the sum is 21.

The square root of 345243 is about 587.5738251488. The cubic root of 345243 is about 70.1522536344.

Adding to 345243 its reverse (342543), we get a palindrome (687786).

The spelling of 345243 in words is "three hundred forty-five thousand, two hundred forty-three".