9140321 has 2 divisors, whose sum is σ = 9140322. Its totient is φ = 9140320.

The previous prime is 9140303. The next prime is 9140347. The reversal of 9140321 is 1230419.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7639696 + 1500625 = 2764^2 + 1225^2 .

It is a cyclic number.

It is not a de Polignac number, because 9140321 - 2¹⁰ = 9139297 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 9140293 and 9140302.

It is not a weakly prime, because it can be changed into another prime (9140921) 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 as a sum of consecutive naturals, namely, 4570160 + 4570161.

It is an arithmetic number, because the mean of its divisors is an integer number (4570161).

Almost surely, 2^9140321 is an apocalyptic number.

It is an amenable number.

9140321 is a deficient number, since it is larger than the sum of its proper divisors (1).

9140321 is an equidigital number, since it uses as much as digits as its factorization.

9140321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 9140321 is about 3023.2963797815. The cubic root of 9140321 is about 209.0838472210.

The spelling of 9140321 in words is "nine million, one hundred forty thousand, three hundred twenty-one".