345203345 has 4 divisors (see below), whose sum is σ = 414244020. Its totient is φ = 276162672.

The previous prime is 345203329. The next prime is 345203347. The reversal of 345203345 is 543302543.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 167754304 + 177449041 = 12952^2 + 13321^2 .

It is a cyclic number.

It is not a de Polignac number, because 345203345 - 2⁴ = 345203329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (345203347) 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, 34520330 + ... + 34520339.

It is an arithmetic number, because the mean of its divisors is an integer number (103561005).

Almost surely, 2^345203345 is an apocalyptic number.

It is an amenable number.

345203345 is a deficient number, since it is larger than the sum of its proper divisors (69040675).

345203345 is an equidigital number, since it uses as much as digits as its factorization.

345203345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69040674.

The product of its (nonzero) digits is 21600, while the sum is 29.

The square root of 345203345 is about 18579.6486780563. The cubic root of 345203345 is about 701.4956760921.

Adding to 345203345 its reverse (543302543), we get a palindrome (888505888).

The spelling of 345203345 in words is "three hundred forty-five million, two hundred three thousand, three hundred forty-five".