1442353243 has 2 divisors, whose sum is σ = 1442353244. Its totient is φ = 1442353242.

The previous prime is 1442353229. The next prime is 1442353247. The reversal of 1442353243 is 3423532441.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1442353243 - 2²¹ = 1440256091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1442353247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721176621 + 721176622.

It is an arithmetic number, because the mean of its divisors is an integer number (721176622).

Almost surely, 2^1442353243 is an apocalyptic number.

1442353243 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442353243 is an equidigital number, since it uses as much as digits as its factorization.

1442353243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34560, while the sum is 31.

The square root of 1442353243 is about 37978.3259636335. The cubic root of 1442353243 is about 1129.8580350016.

Adding to 1442353243 its reverse (3423532441), we get a palindrome (4865885684).

It can be divided in two parts, 1 and 442353243, that added together give a palindrome (442353244).

The spelling of 1442353243 in words is "one billion, four hundred forty-two million, three hundred fifty-three thousand, two hundred forty-three".