2194828901 has 2 divisors, whose sum is σ = 2194828902. Its totient is φ = 2194828900.

The previous prime is 2194828847. The next prime is 2194828907. The reversal of 2194828901 is 1098284912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2194828801 + 100 = 46849^2 + 10^2 .

It is a cyclic number.

It is not a de Polignac number, because 2194828901 - 2¹⁸ = 2194566757 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2194828907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1097414450 + 1097414451.

It is an arithmetic number, because the mean of its divisors is an integer number (1097414451).

Almost surely, 2^2194828901 is an apocalyptic number.

It is an amenable number.

2194828901 is a deficient number, since it is larger than the sum of its proper divisors (1).

2194828901 is an equidigital number, since it uses as much as digits as its factorization.

2194828901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 82944, while the sum is 44.

The square root of 2194828901 is about 46849.0010672586. The cubic root of 2194828901 is about 1299.5716342089.

The spelling of 2194828901 in words is "two billion, one hundred ninety-four million, eight hundred twenty-eight thousand, nine hundred one".