345012 has 12 divisors (see below), whose sum is σ = 805056. Its totient is φ = 115000.

The previous prime is 345011. The next prime is 345017. The reversal of 345012 is 210543.

It is a tau number, because it is divible by the number of its divisors (12).

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

It is a junction number, because it is equal to n+sod(n) for n = 344982 and 345000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345011) 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, 14364 + ... + 14387.

It is an arithmetic number, because the mean of its divisors is an integer number (67088).

2³⁴⁵⁰¹² is an apocalyptic number.

It is an amenable number.

345012 is an abundant number, since it is smaller than the sum of its proper divisors (460044).

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

345012 is a wasteful number, since it uses less digits than its factorization.

345012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28758 (or 28756 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 345012 is about 587.3772212131. The cubic root of 345012 is about 70.1366039942.

Adding to 345012 its reverse (210543), we get a palindrome (555555).

The spelling of 345012 in words is "three hundred forty-five thousand, twelve".