1441729 has 2 divisors, whose sum is σ = 1441730. Its totient is φ = 1441728.

The previous prime is 1441723. The next prime is 1441751. The reversal of 1441729 is 9271441.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1299600 + 142129 = 1140^2 + 377^2 .

It is an emirp because it is prime and its reverse (9271441) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1441729 - 2³ = 1441721 is a prime.

1441729 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1441697 and 1441706.

It is not a weakly prime, because it can be changed into another prime (1441721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720864 + 720865.

It is an arithmetic number, because the mean of its divisors is an integer number (720865).

2^1441729 is an apocalyptic number.

It is an amenable number.

1441729 is a deficient number, since it is larger than the sum of its proper divisors (1).

1441729 is an equidigital number, since it uses as much as digits as its factorization.

1441729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2016, while the sum is 28.

The square root of 1441729 is about 1200.7202005463. The cubic root of 1441729 is about 112.9695012582.

The spelling of 1441729 in words is "one million, four hundred forty-one thousand, seven hundred twenty-nine".