10000129 has 4 divisors (see below), whose sum is σ = 10112580. Its totient is φ = 9887680.

The previous prime is 10000121. The next prime is 10000139. The reversal of 10000129 is 92100001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1327104 + 8673025 = 1152^2 + 2945^2 .

It is a cyclic number.

It is not a de Polignac number, because 10000129 - 2³ = 10000121 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 56092 + ... + 56269.

It is an arithmetic number, because the mean of its divisors is an integer number (2528145).

Almost surely, 2^10000129 is an apocalyptic number.

It is an amenable number.

10000129 is a deficient number, since it is larger than the sum of its proper divisors (112451).

10000129 is an equidigital number, since it uses as much as digits as its factorization.

10000129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112450.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 10000129 is about 3162.2980567935. The cubic root of 10000129 is about 215.4443954061. Note that the first 3 decimals are identical.

The spelling of 10000129 in words is "ten million, one hundred twenty-nine", and thus it is an aban number.