345243323 has 4 divisors (see below), whose sum is σ = 346725288. Its totient is φ = 343761360.

The previous prime is 345243313. The next prime is 345243343. The reversal of 345243323 is 323342543.

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 345243323 - 2¹⁰ = 345242299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (345243313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 740633 + ... + 741098.

It is an arithmetic number, because the mean of its divisors is an integer number (86681322).

Almost surely, 2^345243323 is an apocalyptic number.

345243323 is a deficient number, since it is larger than the sum of its proper divisors (1481965).

345243323 is a wasteful number, since it uses less digits than its factorization.

345243323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1481964.

The product of its digits is 25920, while the sum is 29.

The square root of 345243323 is about 18580.7245014827. The cubic root of 345243323 is about 701.5227551187.

Adding to 345243323 its reverse (323342543), we get a palindrome (668585866).

The spelling of 345243323 in words is "three hundred forty-five million, two hundred forty-three thousand, three hundred twenty-three".