9134921 has 4 divisors (see below), whose sum is σ = 9307332. Its totient is φ = 8962512.

The previous prime is 9134903. The next prime is 9134947. The reversal of 9134921 is 1294319.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1294319 = 13 ⋅99563.

It can be written as a sum of positive squares in 2 ways, for example, as 8042896 + 1092025 = 2836^2 + 1045^2 .

It is not a de Polignac number, because 9134921 - 2¹⁰ = 9133897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9134821) 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 3 ways as a sum of consecutive naturals, for example, 86126 + ... + 86231.

It is an arithmetic number, because the mean of its divisors is an integer number (2326833).

Almost surely, 2^9134921 is an apocalyptic number.

It is an amenable number.

9134921 is a deficient number, since it is larger than the sum of its proper divisors (172411).

9134921 is a wasteful number, since it uses less digits than its factorization.

9134921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172410.

The product of its digits is 1944, while the sum is 29.

The square root of 9134921 is about 3022.4031828993. The cubic root of 9134921 is about 209.0426643058.

The spelling of 9134921 in words is "nine million, one hundred thirty-four thousand, nine hundred twenty-one".