18099853 has 2 divisors, whose sum is σ = 18099854. Its totient is φ = 18099852.

The previous prime is 18099821. The next prime is 18099869. The reversal of 18099853 is 35899081.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 17867529 + 232324 = 4227^2 + 482^2 .

It is a cyclic number.

It is not a de Polignac number, because 18099853 - 2⁵ = 18099821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18099803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9049926 + 9049927.

It is an arithmetic number, because the mean of its divisors is an integer number (9049927).

Almost surely, 2^18099853 is an apocalyptic number.

It is an amenable number.

18099853 is a deficient number, since it is larger than the sum of its proper divisors (1).

18099853 is an equidigital number, since it uses as much as digits as its factorization.

18099853 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 77760, while the sum is 43.

The square root of 18099853 is about 4254.3922010083. The cubic root of 18099853 is about 262.5578551238.

The spelling of 18099853 in words is "eighteen million, ninety-nine thousand, eight hundred fifty-three".