205344613135 has 4 divisors (see below), whose sum is σ = 246413535768. Its totient is φ = 164275690504.

The previous prime is 205344613039. The next prime is 205344613151. The reversal of 205344613135 is 531316443502.

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 205344613135 - 2⁹ = 205344612623 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 205344613094 and 205344613103.

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, 20534461309 + ... + 20534461318.

It is an arithmetic number, because the mean of its divisors is an integer number (61603383942).

Almost surely, 2^205344613135 is an apocalyptic number.

205344613135 is a deficient number, since it is larger than the sum of its proper divisors (41068922633).

205344613135 is an equidigital number, since it uses as much as digits as its factorization.

205344613135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41068922632.

The product of its (nonzero) digits is 129600, while the sum is 37.

The spelling of 205344613135 in words is "two hundred five billion, three hundred forty-four million, six hundred thirteen thousand, one hundred thirty-five".