867161 has 2 divisors, whose sum is σ = 867162. Its totient is φ = 867160.

The previous prime is 867151. The next prime is 867173. The reversal of 867161 is 161768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 866761 + 400 = 931^2 + 20^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-867161 is a prime.

It is not a weakly prime, because it can be changed into another prime (867121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 433580 + 433581.

It is an arithmetic number, because the mean of its divisors is an integer number (433581).

2⁸⁶⁷¹⁶¹ is an apocalyptic number.

It is an amenable number.

867161 is a deficient number, since it is larger than the sum of its proper divisors (1).

867161 is an equidigital number, since it uses as much as digits as its factorization.

867161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 29.

The square root of 867161 is about 931.2147979924. The cubic root of 867161 is about 95.3600739479.

The spelling of 867161 in words is "eight hundred sixty-seven thousand, one hundred sixty-one".