16853189 has 2 divisors, whose sum is σ = 16853190. Its totient is φ = 16853188.

The previous prime is 16853183. The next prime is 16853201. The reversal of 16853189 is 98135861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10452289 + 6400900 = 3233^2 + 2530^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16853189 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16853183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8426594 + 8426595.

It is an arithmetic number, because the mean of its divisors is an integer number (8426595).

Almost surely, 2^16853189 is an apocalyptic number.

It is an amenable number.

16853189 is a deficient number, since it is larger than the sum of its proper divisors (1).

16853189 is an equidigital number, since it uses as much as digits as its factorization.

16853189 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51840, while the sum is 41.

The square root of 16853189 is about 4105.2635725371. The cubic root of 16853189 is about 256.3858368446.

The spelling of 16853189 in words is "sixteen million, eight hundred fifty-three thousand, one hundred eighty-nine".