205313135 has 8 divisors (see below), whose sum is σ = 246613920. Its totient is φ = 164091744.

The previous prime is 205313099. The next prime is 205313137. The reversal of 205313135 is 531313502.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 205313135 - 2⁶ = 205313071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 205313135.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (205313137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14000 + ... + 24629.

It is an arithmetic number, because the mean of its divisors is an integer number (30826740).

Almost surely, 2^205313135 is an apocalyptic number.

205313135 is a deficient number, since it is larger than the sum of its proper divisors (41300785).

205313135 is a wasteful number, since it uses less digits than its factorization.

205313135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39697.

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 205313135 is about 14328.7520391694. The cubic root of 205313135 is about 589.9369222999.

Adding to 205313135 its reverse (531313502), we get a palindrome (736626637).

The spelling of 205313135 in words is "two hundred five million, three hundred thirteen thousand, one hundred thirty-five".