1433143421 has 2 divisors, whose sum is σ = 1433143422. Its totient is φ = 1433143420.

The previous prime is 1433143403. The next prime is 1433143447. The reversal of 1433143421 is 1243413341.

It is a happy number.

It is an a-pointer prime, because the next prime (1433143447) can be obtained adding 1433143421 to its sum of digits (26).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1013467225 + 419676196 = 31835^2 + 20486^2 .

It is a cyclic number.

It is not a de Polignac number, because 1433143421 - 2¹⁴ = 1433127037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1433143021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 716571710 + 716571711.

It is an arithmetic number, because the mean of its divisors is an integer number (716571711).

Almost surely, 2^1433143421 is an apocalyptic number.

It is an amenable number.

1433143421 is a deficient number, since it is larger than the sum of its proper divisors (1).

1433143421 is an equidigital number, since it uses as much as digits as its factorization.

1433143421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3456, while the sum is 26.

The square root of 1433143421 is about 37856.8807616264. The cubic root of 1433143421 is about 1127.4480802309.

Adding to 1433143421 its reverse (1243413341), we get a palindrome (2676556762).

The spelling of 1433143421 in words is "one billion, four hundred thirty-three million, one hundred forty-three thousand, four hundred twenty-one".