205345351 has 4 divisors (see below), whose sum is σ = 205558672. Its totient is φ = 205132032.

The previous prime is 205345321. The next prime is 205345367. The reversal of 205345351 is 153543502.

205345351 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 205345351 - 2⁵ = 205345319 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 (205345321) 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, 105210 + ... + 107143.

It is an arithmetic number, because the mean of its divisors is an integer number (51389668).

Almost surely, 2^205345351 is an apocalyptic number.

205345351 is a deficient number, since it is larger than the sum of its proper divisors (213321).

205345351 is an equidigital number, since it uses as much as digits as its factorization.

205345351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213320.

The product of its (nonzero) digits is 9000, while the sum is 28.

The square root of 205345351 is about 14329.8761683414. The cubic root of 205345351 is about 589.9677766563.

Adding to 205345351 its reverse (153543502), we get a palindrome (358888853).

The spelling of 205345351 in words is "two hundred five million, three hundred forty-five thousand, three hundred fifty-one".