1442231563 has 2 divisors, whose sum is σ = 1442231564. Its totient is φ = 1442231562.

The previous prime is 1442231501. The next prime is 1442231579. The reversal of 1442231563 is 3651322441.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1442231563 - 2¹³ = 1442223371 is a prime.

It is not a weakly prime, because it can be changed into another prime (1442231963) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 721115781 + 721115782.

It is an arithmetic number, because the mean of its divisors is an integer number (721115782).

Almost surely, 2^1442231563 is an apocalyptic number.

1442231563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1442231563 is an equidigital number, since it uses as much as digits as its factorization.

1442231563 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 31.

The square root of 1442231563 is about 37976.7239635016. The cubic root of 1442231563 is about 1129.8262616958.

The spelling of 1442231563 in words is "one billion, four hundred forty-two million, two hundred thirty-one thousand, five hundred sixty-three".