206104135 has 8 divisors (see below), whose sum is σ = 249774336. Its totient is φ = 163250400.

The previous prime is 206104123. The next prime is 206104139. The reversal of 206104135 is 531401602.

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

It is not a de Polignac number, because 206104135 - 2¹¹ = 206102087 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 (206104139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 203559 + ... + 204568.

It is an arithmetic number, because the mean of its divisors is an integer number (31221792).

Almost surely, 2^206104135 is an apocalyptic number.

206104135 is a deficient number, since it is larger than the sum of its proper divisors (43670201).

206104135 is a wasteful number, since it uses less digits than its factorization.

206104135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408233.

The product of its (nonzero) digits is 720, while the sum is 22.

The square root of 206104135 is about 14356.3273506841. The cubic root of 206104135 is about 590.6935586084.

Adding to 206104135 its reverse (531401602), we get a palindrome (737505737).

The spelling of 206104135 in words is "two hundred six million, one hundred four thousand, one hundred thirty-five".