9390121 has 4 divisors (see below), whose sum is σ = 10112452. Its totient is φ = 8667792.

The previous prime is 9390097. The next prime is 9390127. The reversal of 9390121 is 1210939.

9390121 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1488400 + 7901721 = 1220^2 + 2811^2 .

It is a cyclic number.

It is not a de Polignac number, because 9390121 - 2¹⁵ = 9357353 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9390127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361146 + ... + 361171.

It is an arithmetic number, because the mean of its divisors is an integer number (2528113).

Almost surely, 2^9390121 is an apocalyptic number.

It is an amenable number.

9390121 is a deficient number, since it is larger than the sum of its proper divisors (722331).

9390121 is a wasteful number, since it uses less digits than its factorization.

9390121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 722330.

The product of its (nonzero) digits is 486, while the sum is 25.

The square root of 9390121 is about 3064.3304325741. The cubic root of 9390121 is about 210.9714702784.

The spelling of 9390121 in words is "nine million, three hundred ninety thousand, one hundred twenty-one".