345943 has 12 divisors (see below), whose sum is σ = 395280. Its totient is φ = 302016.

The previous prime is 345937. The next prime is 345953. The reversal of 345943 is 349543.

It is not a de Polignac number, because 345943 - 2⁹ = 345431 is a prime.

It is a Duffinian number.

345943 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3843 + ... + 3931.

It is an arithmetic number, because the mean of its divisors is an integer number (32940).

2³⁴⁵⁹⁴³ is an apocalyptic number.

345943 is a deficient number, since it is larger than the sum of its proper divisors (49337).

345943 is a wasteful number, since it uses less digits than its factorization.

345943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138 (or 125 counting only the distinct ones).

The product of its digits is 6480, while the sum is 28.

The square root of 345943 is about 588.1691933449. The cubic root of 345943 is about 70.1996342002.

Subtracting 345943 from its reverse (349543), we obtain a square (3600 = 60²).

The spelling of 345943 in words is "three hundred forty-five thousand, nine hundred forty-three".