831013325 has 6 divisors (see below), whose sum is σ = 1030456554. Its totient is φ = 664810640.

The previous prime is 831013319. The next prime is 831013327. The reversal of 831013325 is 523310138.

It can be written as a sum of positive squares in 3 ways, for example, as 17280649 + 813732676 = 4157^2 + 28526^2 .

It is not a de Polignac number, because 831013325 - 2¹² = 831009229 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 831013294 and 831013303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831013327) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 16620242 + ... + 16620291.

It is an arithmetic number, because the mean of its divisors is an integer number (171742759).

Almost surely, 2^831013325 is an apocalyptic number.

It is an amenable number.

831013325 is a deficient number, since it is larger than the sum of its proper divisors (199443229).

831013325 is a wasteful number, since it uses less digits than its factorization.

831013325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33240543 (or 33240538 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 26.

The square root of 831013325 is about 28827.3017294370. The cubic root of 831013325 is about 940.1619326427.

The spelling of 831013325 in words is "eight hundred thirty-one million, thirteen thousand, three hundred twenty-five".