994121 has 4 divisors (see below), whose sum is σ = 1012932. Its totient is φ = 975312.

The previous prime is 994093. The next prime is 994141. The reversal of 994121 is 121499.

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 657721 + 336400 = 811^2 + 580^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-994121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 994121.

It is not an unprimeable number, because it can be changed into a prime (994141) 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, 9326 + ... + 9431.

It is an arithmetic number, because the mean of its divisors is an integer number (253233).

2⁹⁹⁴¹²¹ is an apocalyptic number.

It is an amenable number.

994121 is a deficient number, since it is larger than the sum of its proper divisors (18811).

994121 is a wasteful number, since it uses less digits than its factorization.

994121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18810.

The product of its digits is 648, while the sum is 26.

The square root of 994121 is about 997.0561669234. The cubic root of 994121 is about 99.8036480448.

The spelling of 994121 in words is "nine hundred ninety-four thousand, one hundred twenty-one".