345211 has 4 divisors (see below), whose sum is σ = 363400. Its totient is φ = 327024.

The previous prime is 345193. The next prime is 345221. The reversal of 345211 is 112543.

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 345211 - 2¹¹ = 343163 is a prime.

It is a Duffinian number.

It is a zygodrome in base 6.

It is not an unprimeable number, because it can be changed into a prime (345221) 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, 9066 + ... + 9103.

It is an arithmetic number, because the mean of its divisors is an integer number (90850).

2³⁴⁵²¹¹ is an apocalyptic number.

345211 is a deficient number, since it is larger than the sum of its proper divisors (18189).

345211 is a wasteful number, since it uses less digits than its factorization.

345211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18188.

The product of its digits is 120, while the sum is 16.

The square root of 345211 is about 587.5465938970. The cubic root of 345211 is about 70.1500861354.

Adding to 345211 its reverse (112543), we get a palindrome (457754).

The spelling of 345211 in words is "three hundred forty-five thousand, two hundred eleven".