345355 has 12 divisors (see below), whose sum is σ = 442080. Its totient is φ = 258944.

The previous prime is 345329. The next prime is 345379. The reversal of 345355 is 553543.

It is a happy number.

It is not a de Polignac number, because 345355 - 2⁷ = 345227 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1326 + ... + 1564.

It is an arithmetic number, because the mean of its divisors is an integer number (36840).

2³⁴⁵³⁵⁵ is an apocalyptic number.

345355 is a deficient number, since it is larger than the sum of its proper divisors (96725).

345355 is a wasteful number, since it uses less digits than its factorization.

345355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278 (or 261 counting only the distinct ones).

The product of its digits is 4500, while the sum is 25.

The square root of 345355 is about 587.6691245931. The cubic root of 345355 is about 70.1598388260.

Adding to 345355 its reverse (553543), we get a palindrome (898898).

The spelling of 345355 in words is "three hundred forty-five thousand, three hundred fifty-five".