831241 has 4 divisors (see below), whose sum is σ = 834372. Its totient is φ = 828112.

The previous prime is 831239. The next prime is 831253. The reversal of 831241 is 142138.

831241 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 142138 = 2 ⋅71069.

It can be written as a sum of positive squares in 2 ways, for example, as 395641 + 435600 = 629^2 + 660^2 .

It is a cyclic number.

It is not a de Polignac number, because 831241 - 2¹ = 831239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (831221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1126 + ... + 1711.

It is an arithmetic number, because the mean of its divisors is an integer number (208593).

2⁸³¹²⁴¹ is an apocalyptic number.

It is an amenable number.

831241 is a deficient number, since it is larger than the sum of its proper divisors (3131).

831241 is a wasteful number, since it uses less digits than its factorization.

831241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3130.

The product of its digits is 192, while the sum is 19.

The square root of 831241 is about 911.7241907507. The cubic root of 831241 is about 94.0247784384.

Adding to 831241 its reverse (142138), we get a palindrome (973379).

The spelling of 831241 in words is "eight hundred thirty-one thousand, two hundred forty-one".