1965369841 has 2 divisors, whose sum is σ = 1965369842. Its totient is φ = 1965369840.

The previous prime is 1965369793. The next prime is 1965369929. The reversal of 1965369841 is 1489635691.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1702800225 + 262569616 = 41265^2 + 16204^2 .

It is an emirp because it is prime and its reverse (1489635691) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1965369841 - 2¹³ = 1965361649 is a prime.

It is a super-2 number, since 2×1965369841² = 7725357223824730562, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1965369641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982684920 + 982684921.

It is an arithmetic number, because the mean of its divisors is an integer number (982684921).

Almost surely, 2^1965369841 is an apocalyptic number.

It is an amenable number.

1965369841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965369841 is an equidigital number, since it uses as much as digits as its factorization.

1965369841 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 52.

The square root of 1965369841 is about 44332.4919331183. The cubic root of 1965369841 is about 1252.6067926732.

The spelling of 1965369841 in words is "one billion, nine hundred sixty-five million, three hundred sixty-nine thousand, eight hundred forty-one".