99430129 has 2 divisors, whose sum is σ = 99430130. Its totient is φ = 99430128.

The previous prime is 99430103. The next prime is 99430139. The reversal of 99430129 is 92103499.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98704225 + 725904 = 9935^2 + 852^2 .

It is an emirp because it is prime and its reverse (92103499) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 99430129 - 2¹¹ = 99428081 is a prime.

It is a super-3 number, since 3×99430129³ (a number of 25 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (99430139) 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, 49715064 + 49715065.

It is an arithmetic number, because the mean of its divisors is an integer number (49715065).

Almost surely, 2^99430129 is an apocalyptic number.

It is an amenable number.

99430129 is a deficient number, since it is larger than the sum of its proper divisors (1).

99430129 is an equidigital number, since it uses as much as digits as its factorization.

99430129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 99430129 is about 9971.4657397997. The cubic root of 99430129 is about 463.2755008933.

The spelling of 99430129 in words is "ninety-nine million, four hundred thirty thousand, one hundred twenty-nine".