9129129 has 8 divisors (see below), whose sum is σ = 12378720. Its totient is φ = 5982816.

The previous prime is 9129073. The next prime is 9129149. The reversal of 9129129 is 9219219.

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

It is not a de Polignac number, because 9129129 - 2⁹ = 9128617 is a prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 9129129.

It is not an unprimeable number, because it can be changed into a prime (9129149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25612 + ... + 25965.

It is an arithmetic number, because the mean of its divisors is an integer number (1547340).

Almost surely, 2^9129129 is an apocalyptic number.

It is an amenable number.

9129129 is a deficient number, since it is larger than the sum of its proper divisors (3249591).

9129129 is a wasteful number, since it uses less digits than its factorization.

9129129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51639.

The product of its digits is 2916, while the sum is 33.

The square root of 9129129 is about 3021.4448530463. Note that the first 3 decimals coincide. The cubic root of 9129129 is about 208.9984737723.

The spelling of 9129129 in words is "nine million, one hundred twenty-nine thousand, one hundred twenty-nine".