345003 has 4 divisors (see below), whose sum is σ = 460008. Its totient is φ = 230000.

The previous prime is 345001. The next prime is 345011. The reversal of 345003 is 300543.

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 345003 - 2¹ = 345001 is a prime.

It is an Ulam number.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (345001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57498 + ... + 57503.

It is an arithmetic number, because the mean of its divisors is an integer number (115002).

2³⁴⁵⁰⁰³ is an apocalyptic number.

345003 is a deficient number, since it is larger than the sum of its proper divisors (115005).

345003 is a wasteful number, since it uses less digits than its factorization.

345003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115004.

The product of its (nonzero) digits is 180, while the sum is 15.

The square root of 345003 is about 587.3695599876. The cubic root of 345003 is about 70.1359941266.

Adding to 345003 its reverse (300543), we get a palindrome (645546).

The spelling of 345003 in words is "three hundred forty-five thousand, three".