831264081 has 8 divisors (see below), whose sum is σ = 1113109920. Its totient is φ = 551797152.

The previous prime is 831264029. The next prime is 831264103. The reversal of 831264081 is 180462138.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-831264081 is a prime.

It is a super-2 number, since 2×831264081² = 1381999944721549122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (831264001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 593911 + ... + 595308.

It is an arithmetic number, because the mean of its divisors is an integer number (139138740).

Almost surely, 2^831264081 is an apocalyptic number.

It is an amenable number.

831264081 is a deficient number, since it is larger than the sum of its proper divisors (281845839).

831264081 is a wasteful number, since it uses less digits than its factorization.

831264081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189455.

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 831264081 is about 28831.6506811525. The cubic root of 831264081 is about 940.2564868975.

The spelling of 831264081 in words is "eight hundred thirty-one million, two hundred sixty-four thousand, eighty-one".