345243205 has 16 divisors (see below), whose sum is σ = 437310720. Its totient is φ = 260929728.

The previous prime is 345243203. The next prime is 345243211. The reversal of 345243205 is 502342543.

It is a cyclic number.

It is not a de Polignac number, because 345243205 - 2¹ = 345243203 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345243203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30564 + ... + 40306.

It is an arithmetic number, because the mean of its divisors is an integer number (27331920).

Almost surely, 2^345243205 is an apocalyptic number.

It is an amenable number.

345243205 is a deficient number, since it is larger than the sum of its proper divisors (92067515).

345243205 is a wasteful number, since it uses less digits than its factorization.

345243205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10140.

The product of its (nonzero) digits is 14400, while the sum is 28.

The square root of 345243205 is about 18580.7213261488. The cubic root of 345243205 is about 701.5226751947.

Adding to 345243205 its reverse (502342543), we get a palindrome (847585748).

The spelling of 345243205 in words is "three hundred forty-five million, two hundred forty-three thousand, two hundred five".