345205103 has 4 divisors (see below), whose sum is σ = 345396288. Its totient is φ = 345013920.

The previous prime is 345205097. The next prime is 345205123. The reversal of 345205103 is 301502543.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301502543 = 149 ⋅2023507.

It is a cyclic number.

It is not a de Polignac number, because 345205103 - 2⁴ = 345205087 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (345205123) 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, 92858 + ... + 96503.

It is an arithmetic number, because the mean of its divisors is an integer number (86349072).

Almost surely, 2^345205103 is an apocalyptic number.

345205103 is a deficient number, since it is larger than the sum of its proper divisors (191185).

345205103 is a wasteful number, since it uses less digits than its factorization.

345205103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191184.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 345205103 is about 18579.6959878250. The cubic root of 345205103 is about 701.4968669142.

Adding to 345205103 its reverse (301502543), we get a palindrome (646707646).

The spelling of 345205103 in words is "three hundred forty-five million, two hundred five thousand, one hundred three".