2195743841 has 2 divisors, whose sum is σ = 2195743842. Its totient is φ = 2195743840.

The previous prime is 2195743801. The next prime is 2195743871. The reversal of 2195743841 is 1483475912.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2128438225 + 67305616 = 46135^2 + 8204^2 .

It is a cyclic number.

It is not a de Polignac number, because 2195743841 - 2¹⁸ = 2195481697 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2195743792 and 2195743801.

It is not a weakly prime, because it can be changed into another prime (2195743801) 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 as a sum of consecutive naturals, namely, 1097871920 + 1097871921.

It is an arithmetic number, because the mean of its divisors is an integer number (1097871921).

Almost surely, 2^2195743841 is an apocalyptic number.

It is an amenable number.

2195743841 is a deficient number, since it is larger than the sum of its proper divisors (1).

2195743841 is an equidigital number, since it uses as much as digits as its factorization.

2195743841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 241920, while the sum is 44.

The square root of 2195743841 is about 46858.7648258039. The cubic root of 2195743841 is about 1299.7521896482.

The spelling of 2195743841 in words is "two billion, one hundred ninety-five million, seven hundred forty-three thousand, eight hundred forty-one".