210005135 has 16 divisors (see below), whose sum is σ = 257066112. Its totient is φ = 164656800.

The previous prime is 210005101. The next prime is 210005141. The reversal of 210005135 is 531500012.

It is not a de Polignac number, because 210005135 - 2²⁴ = 193227919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 69200 + ... + 72170.

It is an arithmetic number, because the mean of its divisors is an integer number (16066632).

Almost surely, 2^210005135 is an apocalyptic number.

210005135 is a deficient number, since it is larger than the sum of its proper divisors (47060977).

210005135 is a wasteful number, since it uses less digits than its factorization.

210005135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3254.

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

The square root of 210005135 is about 14491.5539194387. The cubic root of 210005135 is about 594.3970400050.

Adding to 210005135 its reverse (531500012), we get a palindrome (741505147).

The spelling of 210005135 in words is "two hundred ten million, five thousand, one hundred thirty-five".