345855 has 8 divisors (see below), whose sum is σ = 553392. Its totient is φ = 184448.

The previous prime is 345853. The next prime is 345869. The reversal of 345855 is 558543.

345855 = 261² + 262² + ... + 265².

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 345855 - 2¹ = 345853 is a prime.

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 345855.

It is not an unprimeable number, because it can be changed into a prime (345853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11514 + ... + 11543.

It is an arithmetic number, because the mean of its divisors is an integer number (69174).

2³⁴⁵⁸⁵⁵ is an apocalyptic number.

345855 is a deficient number, since it is larger than the sum of its proper divisors (207537).

345855 is a wasteful number, since it uses less digits than its factorization.

345855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23065.

The product of its digits is 12000, while the sum is 30.

The square root of 345855 is about 588.0943801806. The cubic root of 345855 is about 70.1936813007.

The spelling of 345855 in words is "three hundred forty-five thousand, eight hundred fifty-five".