9400121 has 2 divisors, whose sum is σ = 9400122. Its totient is φ = 9400120.

The previous prime is 9400103. The next prime is 9400151. The reversal of 9400121 is 1210049.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8042896 + 1357225 = 2836^2 + 1165^2 .

It is an emirp because it is prime and its reverse (1210049) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9400121 - 2¹⁰ = 9399097 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9400121.

It is not a weakly prime, because it can be changed into another prime (9400151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4700060 + 4700061.

It is an arithmetic number, because the mean of its divisors is an integer number (4700061).

Almost surely, 2^9400121 is an apocalyptic number.

It is an amenable number.

9400121 is a deficient number, since it is larger than the sum of its proper divisors (1).

9400121 is an equidigital number, since it uses as much as digits as its factorization.

9400121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 9400121 is about 3065.9616762119. The cubic root of 9400121 is about 211.0463349947.

Subtracting from 9400121 its product of nonzero digits (72), we obtain a palindrome (9400049).

The spelling of 9400121 in words is "nine million, four hundred thousand, one hundred twenty-one".