205314245 has 4 divisors (see below), whose sum is σ = 246377100. Its totient is φ = 164251392.

The previous prime is 205314143. The next prime is 205314269. The reversal of 205314245 is 542413502.

It is a happy number.

205314245 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 can be written as a sum of positive squares in 2 ways, for example, as 30625156 + 174689089 = 5534^2 + 13217^2 .

It is a cyclic number.

It is not a de Polignac number, because 205314245 - 2⁸ = 205313989 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20531420 + ... + 20531429.

It is an arithmetic number, because the mean of its divisors is an integer number (61594275).

Almost surely, 2^205314245 is an apocalyptic number.

It is an amenable number.

205314245 is a deficient number, since it is larger than the sum of its proper divisors (41062855).

205314245 is an equidigital number, since it uses as much as digits as its factorization.

205314245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41062854.

The product of its (nonzero) digits is 4800, while the sum is 26.

The square root of 205314245 is about 14328.7907724274. The cubic root of 205314245 is about 589.9379854382.

Adding to 205314245 its reverse (542413502), we get a palindrome (747727747).

The spelling of 205314245 in words is "two hundred five million, three hundred fourteen thousand, two hundred forty-five".