831995136 has 216 divisors, whose sum is σ = 2780494080. Its totient is φ = 234344448.

The previous prime is 831995119. The next prime is 831995137. The reversal of 831995136 is 631599138.

It is a junction number, because it is equal to n+sod(n) for n = 831995091 and 831995100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831995137) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 1273786 + ... + 1274438.

Almost surely, 2^831995136 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 831995136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1390247040).

831995136 is an abundant number, since it is smaller than the sum of its proper divisors (1948498944).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

831995136 is a wasteful number, since it uses less digits than its factorization.

831995136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 761 (or 744 counting only the distinct ones).

The product of its digits is 174960, while the sum is 45.

The square root of 831995136 is about 28844.3258891589. The cubic root of 831995136 is about 940.5320422495.

The spelling of 831995136 in words is "eight hundred thirty-one million, nine hundred ninety-five thousand, one hundred thirty-six".