831164069 has 2 divisors, whose sum is σ = 831164070. Its totient is φ = 831164068.

The previous prime is 831164029. The next prime is 831164077. The reversal of 831164069 is 960461138.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 755700100 + 75463969 = 27490^2 + 8687^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-831164069 is a prime.

It is a super-2 number, since 2×831164069² = 1381667419193273522, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (831164029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415582034 + 415582035.

It is an arithmetic number, because the mean of its divisors is an integer number (415582035).

Almost surely, 2^831164069 is an apocalyptic number.

It is an amenable number.

831164069 is a deficient number, since it is larger than the sum of its proper divisors (1).

831164069 is an equidigital number, since it uses as much as digits as its factorization.

831164069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 38.

The square root of 831164069 is about 28829.9162156257. The cubic root of 831164069 is about 940.2187769786.

The spelling of 831164069 in words is "eight hundred thirty-one million, one hundred sixty-four thousand, sixty-nine".