1421411441 has 2 divisors, whose sum is σ = 1421411442. Its totient is φ = 1421411440.

The previous prime is 1421411419. The next prime is 1421411449. The reversal of 1421411441 is 1441141241.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1124193841 + 297217600 = 33529^2 + 17240^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421411441 - 2⁶ = 1421411377 is a prime.

It is not a weakly prime, because it can be changed into another prime (1421411449) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710705720 + 710705721.

It is an arithmetic number, because the mean of its divisors is an integer number (710705721).

Almost surely, 2^1421411441 is an apocalyptic number.

It is an amenable number.

1421411441 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421411441 is an equidigital number, since it uses as much as digits as its factorization.

1421411441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 512, while the sum is 23.

The square root of 1421411441 is about 37701.6105889390. The cubic root of 1421411441 is about 1124.3631466452.

Adding to 1421411441 its reverse (1441141241), we get a palindrome (2862552682).

The spelling of 1421411441 in words is "one billion, four hundred twenty-one million, four hundred eleven thousand, four hundred forty-one".