16854161 has 2 divisors, whose sum is σ = 16854162. Its totient is φ = 16854160.

The previous prime is 16854139. The next prime is 16854209. The reversal of 16854161 is 16145861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16851025 + 3136 = 4105^2 + 56^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16854161 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16874161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8427080 + 8427081.

It is an arithmetic number, because the mean of its divisors is an integer number (8427081).

Almost surely, 2^16854161 is an apocalyptic number.

It is an amenable number.

16854161 is a deficient number, since it is larger than the sum of its proper divisors (1).

16854161 is an equidigital number, since it uses as much as digits as its factorization.

16854161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5760, while the sum is 32.

The square root of 16854161 is about 4105.3819554336. The cubic root of 16854161 is about 256.3907657287.

The spelling of 16854161 in words is "sixteen million, eight hundred fifty-four thousand, one hundred sixty-one".