1001132129 has 4 divisors (see below), whose sum is σ = 1004017584. Its totient is φ = 998246676.

The previous prime is 1001132107. The next prime is 1001132131. The reversal of 1001132129 is 9212311001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 9212311001 = 3919 ⋅2350679.

It is a cyclic number.

It is not a de Polignac number, because 1001132129 - 2²⁸ = 732696673 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1001132129.

It is not an unprimeable number, because it can be changed into a prime (1001132179) 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 in 3 ways as a sum of consecutive naturals, for example, 1442207 + ... + 1442900.

It is an arithmetic number, because the mean of its divisors is an integer number (251004396).

Almost surely, 2^1001132129 is an apocalyptic number.

It is an amenable number.

1001132129 is a deficient number, since it is larger than the sum of its proper divisors (2885455).

1001132129 is an equidigital number, since it uses as much as digits as its factorization.

1001132129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2885454.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1001132129 is about 31640.6720693477. The cubic root of 1001132129 is about 1000.3772340099.

The spelling of 1001132129 in words is "one billion, one million, one hundred thirty-two thousand, one hundred twenty-nine".