1965373841 has 2 divisors, whose sum is σ = 1965373842. Its totient is φ = 1965373840.

The previous prime is 1965373799. The next prime is 1965373937. The reversal of 1965373841 is 1483735691.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1965060241 + 313600 = 44329^2 + 560^2 .

It is a cyclic number.

It is not a de Polignac number, because 1965373841 - 2⁶ = 1965373777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1965373741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 982686920 + 982686921.

It is an arithmetic number, because the mean of its divisors is an integer number (982686921).

Almost surely, 2^1965373841 is an apocalyptic number.

It is an amenable number.

1965373841 is a deficient number, since it is larger than the sum of its proper divisors (1).

1965373841 is an equidigital number, since it uses as much as digits as its factorization.

1965373841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 544320, while the sum is 47.

The square root of 1965373841 is about 44332.5370467335. The cubic root of 1965373841 is about 1252.6076424579.

The spelling of 1965373841 in words is "one billion, nine hundred sixty-five million, three hundred seventy-three thousand, eight hundred forty-one".