831115485 has 20 divisors (see below), whose sum is σ = 1489852188. Its totient is φ = 443261376.

The previous prime is 831115463. The next prime is 831115507. The reversal of 831115485 is 584511138.

831115485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (831115463) and next prime (831115507).

It can be written as a sum of positive squares in 2 ways, for example, as 240188004 + 590927481 = 15498^2 + 24309^2 .

It is not a de Polignac number, because 831115485 - 2¹² = 831111389 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1025664 + ... + 1026473.

Almost surely, 2^831115485 is an apocalyptic number.

It is an amenable number.

831115485 is a deficient number, since it is larger than the sum of its proper divisors (658736703).

831115485 is a wasteful number, since it uses less digits than its factorization.

831115485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2052154 (or 2052145 counting only the distinct ones).

The product of its digits is 19200, while the sum is 36.

The square root of 831115485 is about 28829.0736063440. The cubic root of 831115485 is about 940.2004570981.

The spelling of 831115485 in words is "eight hundred thirty-one million, one hundred fifteen thousand, four hundred eighty-five".