994612121 has 2 divisors, whose sum is σ = 994612122. Its totient is φ = 994612120.

The previous prime is 994612117. The next prime is 994612139. The reversal of 994612121 is 121216499.

994612121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 914760025 + 79852096 = 30245^2 + 8936^2 .

It is a cyclic number.

It is not a de Polignac number, because 994612121 - 2² = 994612117 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (994612111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497306060 + 497306061.

It is an arithmetic number, because the mean of its divisors is an integer number (497306061).

Almost surely, 2^994612121 is an apocalyptic number.

It is an amenable number.

994612121 is a deficient number, since it is larger than the sum of its proper divisors (1).

994612121 is an equidigital number, since it uses as much as digits as its factorization.

994612121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 35.

The square root of 994612121 is about 31537.4716963805. The cubic root of 994612121 is about 998.2008051727.

The spelling of 994612121 in words is "nine hundred ninety-four million, six hundred twelve thousand, one hundred twenty-one".