18016853 has 2 divisors, whose sum is σ = 18016854. Its totient is φ = 18016852.

The previous prime is 18016837. The next prime is 18016861. The reversal of 18016853 is 35861081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14303524 + 3713329 = 3782^2 + 1927^2 .

It is a cyclic number.

It is not a de Polignac number, because 18016853 - 2⁴ = 18016837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18012853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9008426 + 9008427.

It is an arithmetic number, because the mean of its divisors is an integer number (9008427).

Almost surely, 2^18016853 is an apocalyptic number.

It is an amenable number.

18016853 is a deficient number, since it is larger than the sum of its proper divisors (1).

18016853 is an equidigital number, since it uses as much as digits as its factorization.

18016853 is an evil number, because the sum of its binary digits is even.

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

The square root of 18016853 is about 4244.6263675381. The cubic root of 18016853 is about 262.1559053053.

The spelling of 18016853 in words is "eighteen million, sixteen thousand, eight hundred fifty-three".