836161 has 2 divisors, whose sum is σ = 836162. Its totient is φ = 836160.

The previous prime is 836159. The next prime is 836183. The reversal of 836161 is 161638.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 540225 + 295936 = 735^2 + 544^2 .

It is a cyclic number.

It is not a de Polignac number, because 836161 - 2¹ = 836159 is a prime.

Together with 836159, it forms a pair of twin primes.

It is an alternating number because its digits alternate between even and odd.

It is not a weakly prime, because it can be changed into another prime (836131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 418080 + 418081.

It is an arithmetic number, because the mean of its divisors is an integer number (418081).

2⁸³⁶¹⁶¹ is an apocalyptic number.

It is an amenable number.

836161 is a deficient number, since it is larger than the sum of its proper divisors (1).

836161 is an equidigital number, since it uses as much as digits as its factorization.

836161 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 864, while the sum is 25.

The square root of 836161 is about 914.4183943907. The cubic root of 836161 is about 94.2099201751.

Adding to 836161 its reverse (161638), we get a palindrome (997799).

The spelling of 836161 in words is "eight hundred thirty-six thousand, one hundred sixty-one".