18098299 has 2 divisors, whose sum is σ = 18098300. Its totient is φ = 18098298.

The previous prime is 18098293. The next prime is 18098321. The reversal of 18098299 is 99289081.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 18098299 - 2⁹ = 18097787 is a prime.

It is not a weakly prime, because it can be changed into another prime (18098293) 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, 9049149 + 9049150.

It is an arithmetic number, because the mean of its divisors is an integer number (9049150).

Almost surely, 2^18098299 is an apocalyptic number.

18098299 is a deficient number, since it is larger than the sum of its proper divisors (1).

18098299 is an equidigital number, since it uses as much as digits as its factorization.

18098299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 46.

The square root of 18098299 is about 4254.2095623041. The cubic root of 18098299 is about 262.5503407610.

It can be divided in two parts, 1 and 8098299, that added together give a triangular number (8098300 = T₄₀₂₄).

The spelling of 18098299 in words is "eighteen million, ninety-eight thousand, two hundred ninety-nine".