1441323161 has 2 divisors, whose sum is σ = 1441323162. Its totient is φ = 1441323160.

The previous prime is 1441323139. The next prime is 1441323193. The reversal of 1441323161 is 1613231441.

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., 1028420761 + 412902400 = 32069^2 + 20320^2 .

It is a cyclic number.

It is not a de Polignac number, because 1441323161 - 2³⁰ = 367581337 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1441323161.

It is not a weakly prime, because it can be changed into another prime (1441323361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720661580 + 720661581.

It is an arithmetic number, because the mean of its divisors is an integer number (720661581).

Almost surely, 2^1441323161 is an apocalyptic number.

It is an amenable number.

1441323161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441323161 is an equidigital number, since it uses as much as digits as its factorization.

1441323161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1728, while the sum is 26.

The square root of 1441323161 is about 37964.7620959226. The cubic root of 1441323161 is about 1129.5890016007.

The spelling of 1441323161 in words is "one billion, four hundred forty-one million, three hundred twenty-three thousand, one hundred sixty-one".