1965106841 has 2 divisors, whose sum is σ = 1965106842. Its totient is φ = 1965106840.

The previous prime is 1965106777. The next prime is 1965106853. The reversal of 1965106841 is 1486015691.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1955496841 + 9610000 = 44221^2 + 3100^2 .

It is an emirp because it is prime and its reverse (1486015691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1965106841 - 2⁶ = 1965106777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1965106441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982553420 + 982553421.

It is an arithmetic number, because the mean of its divisors is an integer number (982553421).

Almost surely, 2^1965106841 is an apocalyptic number.

It is an amenable number.

1965106841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965106841 is an equidigital number, since it uses as much as digits as its factorization.

1965106841 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 51840, while the sum is 41.

The square root of 1965106841 is about 44329.5256121696. The cubic root of 1965106841 is about 1252.5509167976.

The spelling of 1965106841 in words is "one billion, nine hundred sixty-five million, one hundred six thousand, eight hundred forty-one".