9121129 has 12 divisors (see below), whose sum is σ = 9962764. Its totient is φ = 8342784.

The previous prime is 9121097. The next prime is 9121153. The reversal of 9121129 is 9211219.

9121129 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 6 ways, for example, as 565504 + 8555625 = 752^2 + 2925^2 .

It is not a de Polignac number, because 9121129 - 2⁵ = 9121097 is a prime.

It is a Duffinian number.

9121129 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9121199) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 10267 + ... + 11119.

Almost surely, 2^9121129 is an apocalyptic number.

It is an amenable number.

9121129 is a deficient number, since it is larger than the sum of its proper divisors (841635).

9121129 is a wasteful number, since it uses less digits than its factorization.

9121129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 924 (or 907 counting only the distinct ones).

The product of its digits is 324, while the sum is 25.

The square root of 9121129 is about 3020.1206929525. The cubic root of 9121129 is about 208.9374063756.

The spelling of 9121129 in words is "nine million, one hundred twenty-one thousand, one hundred twenty-nine".