1000129 has 8 divisors (see below), whose sum is σ = 1088640. Its totient is φ = 913296.

The previous prime is 1000121. The next prime is 1000133. The reversal of 1000129 is 9210001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1000129 - 2³ = 1000121 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1032 + ... + 1750.

It is an arithmetic number, because the mean of its divisors is an integer number (136080).

2^1000129 is an apocalyptic number.

It is an amenable number.

1000129 is a deficient number, since it is larger than the sum of its proper divisors (88511).

1000129 is a wasteful number, since it uses less digits than its factorization.

1000129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839.

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

The square root of 1000129 is about 1000.0644979200. The cubic root of 1000129 is about 100.0042998151.

The spelling of 1000129 in words is "one million, one hundred twenty-nine", and thus it is an aban number.