836135128 has 32 divisors (see below), whose sum is σ = 1655352000. Its totient is φ = 394843680.

The previous prime is 836135117. The next prime is 836135149. The reversal of 836135128 is 821531638.

836135128 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42003 + ... + 58621.

It is an arithmetic number, because the mean of its divisors is an integer number (51729750).

Almost surely, 2^836135128 is an apocalyptic number.

It is an amenable number.

836135128 is a deficient number, since it is larger than the sum of its proper divisors (819216872).

836135128 is a wasteful number, since it uses less digits than its factorization.

836135128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16975 (or 16971 counting only the distinct ones).

The product of its digits is 34560, while the sum is 37.

The square root of 836135128 is about 28916.0012449854. The cubic root of 836135128 is about 942.0894850253.

The spelling of 836135128 in words is "eight hundred thirty-six million, one hundred thirty-five thousand, one hundred twenty-eight".