1680001441 has 2 divisors, whose sum is σ = 1680001442. Its totient is φ = 1680001440.

The previous prime is 1680001381. The next prime is 1680001481. The reversal of 1680001441 is 1441000861.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1041933841 + 638067600 = 32279^2 + 25260^2 .

It is an emirp because it is prime and its reverse (1441000861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1680001441 - 2⁷ = 1680001313 is a prime.

It is not a weakly prime, because it can be changed into another prime (1680001481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 840000720 + 840000721.

It is an arithmetic number, because the mean of its divisors is an integer number (840000721).

Almost surely, 2^1680001441 is an apocalyptic number.

It is an amenable number.

1680001441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1680001441 is an equidigital number, since it uses as much as digits as its factorization.

1680001441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 25.

The square root of 1680001441 is about 40987.8206422347. The cubic root of 1680001441 is about 1188.7847304411.

The spelling of 1680001441 in words is "one billion, six hundred eighty million, one thousand, four hundred forty-one".