345903 has 4 divisors (see below), whose sum is σ = 461208. Its totient is φ = 230600.

The previous prime is 345889. The next prime is 345907. The reversal of 345903 is 309543.

345903 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 345903 - 2⁴ = 345887 is a prime.

It is a D-number.

345903 is strictly pandigital in base 7.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 345903.

It is not an unprimeable number, because it can be changed into a prime (345907) 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 3 ways as a sum of consecutive naturals, for example, 57648 + ... + 57653.

It is an arithmetic number, because the mean of its divisors is an integer number (115302).

2³⁴⁵⁹⁰³ is an apocalyptic number.

345903 is a deficient number, since it is larger than the sum of its proper divisors (115305).

345903 is a wasteful number, since it uses less digits than its factorization.

345903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115304.

The product of its (nonzero) digits is 1620, while the sum is 24.

The square root of 345903 is about 588.1351885409. The cubic root of 345903 is about 70.1969284620.

The spelling of 345903 in words is "three hundred forty-five thousand, nine hundred three".