345013 has 4 divisors (see below), whose sum is σ = 356940. Its totient is φ = 333088.

The previous prime is 345011. The next prime is 345017. The reversal of 345013 is 310543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310543 = 443 ⋅701.

It can be written as a sum of positive squares in 2 ways, for example, as 288369 + 56644 = 537^2 + 238^2 .

It is a cyclic number.

It is not a de Polignac number, because 345013 - 2¹ = 345011 is a prime.

It is a Duffinian number.

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, 5920 + ... + 5977.

It is an arithmetic number, because the mean of its divisors is an integer number (89235).

2³⁴⁵⁰¹³ is an apocalyptic number.

It is an amenable number.

345013 is a deficient number, since it is larger than the sum of its proper divisors (11927).

345013 is a wasteful number, since it uses less digits than its factorization.

345013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11926.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 345013 is about 587.3780724542. The cubic root of 345013 is about 70.1366717566.

Adding to 345013 its reverse (310543), we get a palindrome (655556).

It can be divided in two parts, 3450 and 13, that multiplied together give a triangular number (44850 = T₂₉₉).

The spelling of 345013 in words is "three hundred forty-five thousand, thirteen".