1443223141 has 2 divisors, whose sum is σ = 1443223142. Its totient is φ = 1443223140.

The previous prime is 1443223127. The next prime is 1443223153. The reversal of 1443223141 is 1413223441.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 917484100 + 525739041 = 30290^2 + 22929^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1443223141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1443223241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721611570 + 721611571.

It is an arithmetic number, because the mean of its divisors is an integer number (721611571).

Almost surely, 2^1443223141 is an apocalyptic number.

It is an amenable number.

1443223141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1443223141 is an equidigital number, since it uses as much as digits as its factorization.

1443223141 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2304, while the sum is 25.

The square root of 1443223141 is about 37989.7767958697. The cubic root of 1443223141 is about 1130.0851323336.

Adding to 1443223141 its reverse (1413223441), we get a palindrome (2856446582).

It can be divided in two parts, 14432 and 23141, that added together give a palindrome (37573).

The spelling of 1443223141 in words is "one billion, four hundred forty-three million, two hundred twenty-three thousand, one hundred forty-one".