201005135 has 16 divisors (see below), whose sum is σ = 249734016. Its totient is φ = 155213568.

The previous prime is 201005107. The next prime is 201005137. The reversal of 201005135 is 531500102.

It is a cyclic number.

It is not a de Polignac number, because 201005135 - 2⁶ = 201005071 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 (201005137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11297 + ... + 23013.

It is an arithmetic number, because the mean of its divisors is an integer number (15608376).

Almost surely, 2^201005135 is an apocalyptic number.

201005135 is a deficient number, since it is larger than the sum of its proper divisors (48728881).

201005135 is a wasteful number, since it uses less digits than its factorization.

201005135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11842.

The product of its (nonzero) digits is 150, while the sum is 17.

The square root of 201005135 is about 14177.6279750881. The cubic root of 201005135 is about 585.7815885523.

Adding to 201005135 its reverse (531500102), we get a palindrome (732505237).

The spelling of 201005135 in words is "two hundred one million, five thousand, one hundred thirty-five".