210135836 has 6 divisors (see below), whose sum is σ = 367737720. Its totient is φ = 105067916.

The previous prime is 210135823. The next prime is 210135857. The reversal of 210135836 is 638531012.

210135836 is digitally balanced in base 3 and base 9, because in such bases it contains all the possibile digits an equal number of times.

210135836 is strictly pandigital in base 9.

It is a junction number, because it is equal to n+sod(n) for n = 210135799 and 210135808.

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 as a sum of consecutive naturals, namely, 26266976 + ... + 26266983.

It is an arithmetic number, because the mean of its divisors is an integer number (61289620).

Almost surely, 2^210135836 is an apocalyptic number.

It is an amenable number.

210135836 is a deficient number, since it is larger than the sum of its proper divisors (157601884).

210135836 is a wasteful number, since it uses less digits than its factorization.

210135836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52533963 (or 52533961 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 29.

The square root of 210135836 is about 14496.0627758023. The cubic root of 210135836 is about 594.5203261588.

Adding to 210135836 its reverse (638531012), we get a palindrome (848666848).

The spelling of 210135836 in words is "two hundred ten million, one hundred thirty-five thousand, eight hundred thirty-six".