99909113 has 2 divisors, whose sum is σ = 99909114. Its totient is φ = 99909112.

The previous prime is 99909109. The next prime is 99909137. The reversal of 99909113 is 31190999.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96098809 + 3810304 = 9803^2 + 1952^2 .

It is a cyclic number.

It is not a de Polignac number, because 99909113 - 2² = 99909109 is a prime.

It is not a weakly prime, because it can be changed into another prime (99909193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49954556 + 49954557.

It is an arithmetic number, because the mean of its divisors is an integer number (49954557).

Almost surely, 2^99909113 is an apocalyptic number.

It is an amenable number.

99909113 is a deficient number, since it is larger than the sum of its proper divisors (1).

99909113 is an equidigital number, since it uses as much as digits as its factorization.

99909113 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 19683, while the sum is 41.

The square root of 99909113 is about 9995.4546169747. The cubic root of 99909113 is about 464.0182207099.

The spelling of 99909113 in words is "ninety-nine million, nine hundred nine thousand, one hundred thirteen".