1441363661 has 2 divisors, whose sum is σ = 1441363662. Its totient is φ = 1441363660.

The previous prime is 1441363619. The next prime is 1441363691. The reversal of 1441363661 is 1663631441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1121848036 + 319515625 = 33494^2 + 17875^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1441363661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1441363691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720681830 + 720681831.

It is an arithmetic number, because the mean of its divisors is an integer number (720681831).

Almost surely, 2^1441363661 is an apocalyptic number.

It is an amenable number.

1441363661 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441363661 is an equidigital number, since it uses as much as digits as its factorization.

1441363661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31104, while the sum is 35.

The square root of 1441363661 is about 37965.2954815316. The cubic root of 1441363661 is about 1129.5995816767.

The spelling of 1441363661 in words is "one billion, four hundred forty-one million, three hundred sixty-three thousand, six hundred sixty-one".