131085838 has 16 divisors (see below), whose sum is σ = 212110416. Its totient is φ = 60399360.

The previous prime is 131085797. The next prime is 131085841. The reversal of 131085838 is 838580131.

131085838 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 131085797 and 131085806.

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 7 ways as a sum of consecutive naturals, for example, 12798 + ... + 20638.

It is an arithmetic number, because the mean of its divisors is an integer number (13256901).

Almost surely, 2^131085838 is an apocalyptic number.

131085838 is a deficient number, since it is larger than the sum of its proper divisors (81024578).

131085838 is a wasteful number, since it uses less digits than its factorization.

131085838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8499.

The product of its (nonzero) digits is 23040, while the sum is 37.

The square root of 131085838 is about 11449.2723786274. The cubic root of 131085838 is about 507.9862123482.

The spelling of 131085838 in words is "one hundred thirty-one million, eighty-five thousand, eight hundred thirty-eight".