109499899 has 2 divisors, whose sum is σ = 109499900. Its totient is φ = 109499898.

The previous prime is 109499881. The next prime is 109499903. The reversal of 109499899 is 998994901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109499899 - 2⁹ = 109499387 is a prime.

It is not a weakly prime, because it can be changed into another prime (109499399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54749949 + 54749950.

It is an arithmetic number, because the mean of its divisors is an integer number (54749950).

Almost surely, 2^109499899 is an apocalyptic number.

109499899 is a deficient number, since it is larger than the sum of its proper divisors (1).

109499899 is an equidigital number, since it uses as much as digits as its factorization.

109499899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1889568, while the sum is 58.

The square root of 109499899 is about 10464.2199422604. The cubic root of 109499899 is about 478.4147631633.

The spelling of 109499899 in words is "one hundred nine million, four hundred ninety-nine thousand, eight hundred ninety-nine".