129000499 has 2 divisors, whose sum is σ = 129000500. Its totient is φ = 129000498.

The previous prime is 129000493. The next prime is 129000503. The reversal of 129000499 is 994000921.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 129000499 - 2¹⁵ = 128967731 is a prime.

It is a super-2 number, since 2×129000499² = 33282257484498002, which contains 22 as substring.

It is equal to p_7324756 and since 129000499 and 7324756 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (129000493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 64500249 + 64500250.

It is an arithmetic number, because the mean of its divisors is an integer number (64500250).

Almost surely, 2^129000499 is an apocalyptic number.

129000499 is a deficient number, since it is larger than the sum of its proper divisors (1).

129000499 is an equidigital number, since it uses as much as digits as its factorization.

129000499 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 129000499 is about 11357.8386588294. The cubic root of 129000499 is about 505.2780862276.

The spelling of 129000499 in words is "one hundred twenty-nine million, four hundred ninety-nine", and thus it is an aban number.