1382985563 has 4 divisors (see below), whose sum is σ = 1383062640. Its totient is φ = 1382908488.

The previous prime is 1382985557. The next prime is 1382985577. The reversal of 1382985563 is 3655892831.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 3655892831 = 2707 ⋅1350533.

It is a cyclic number.

It is not a de Polignac number, because 1382985563 - 2¹⁶ = 1382920027 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1382985523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4106 + ... + 52752.

It is an arithmetic number, because the mean of its divisors is an integer number (345765660).

Almost surely, 2^1382985563 is an apocalyptic number.

1382985563 is a deficient number, since it is larger than the sum of its proper divisors (77077).

1382985563 is an equidigital number, since it uses as much as digits as its factorization.

1382985563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77076.

The product of its digits is 1555200, while the sum is 50.

The square root of 1382985563 is about 37188.5138584483. The cubic root of 1382985563 is about 1114.1385862137.

The spelling of 1382985563 in words is "one billion, three hundred eighty-two million, nine hundred eighty-five thousand, five hundred sixty-three".