1440357563 has 2 divisors, whose sum is σ = 1440357564. Its totient is φ = 1440357562.

The previous prime is 1440357539. The next prime is 1440357641. The reversal of 1440357563 is 3657530441.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1440357563 - 2¹⁰ = 1440356539 is a prime.

It is not a weakly prime, because it can be changed into another prime (1440357533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 720178781 + 720178782.

It is an arithmetic number, because the mean of its divisors is an integer number (720178782).

Almost surely, 2^1440357563 is an apocalyptic number.

1440357563 is a deficient number, since it is larger than the sum of its proper divisors (1).

1440357563 is an equidigital number, since it uses as much as digits as its factorization.

1440357563 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 151200, while the sum is 38.

The square root of 1440357563 is about 37952.0429357894. The cubic root of 1440357563 is about 1129.3366934959.

The spelling of 1440357563 in words is "one billion, four hundred forty million, three hundred fifty-seven thousand, five hundred sixty-three".