345343211 has 4 divisors (see below), whose sum is σ = 345609552. Its totient is φ = 345076872.

The previous prime is 345343189. The next prime is 345343213. The reversal of 345343211 is 112343543.

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 345343211 - 2⁶ = 345343147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345343213) 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, 131216 + ... + 133821.

It is an arithmetic number, because the mean of its divisors is an integer number (86402388).

Almost surely, 2^345343211 is an apocalyptic number.

345343211 is a deficient number, since it is larger than the sum of its proper divisors (266341).

345343211 is a wasteful number, since it uses less digits than its factorization.

345343211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266340.

The product of its digits is 4320, while the sum is 26.

The square root of 345343211 is about 18583.4122539430. The cubic root of 345343211 is about 701.5904049406.

Adding to 345343211 its reverse (112343543), we get a palindrome (457686754).

It can be divided in two parts, 3453 and 43211, that added together give a palindrome (46664).

The spelling of 345343211 in words is "three hundred forty-five million, three hundred forty-three thousand, two hundred eleven".