1563349449 has 8 divisors (see below), whose sum is σ = 2091832672. Its totient is φ = 1038549600.

The previous prime is 1563349439. The next prime is 1563349451. The reversal of 1563349449 is 9449433651.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1563349449 - 2⁴ = 1563349433 is a prime.

It is a super-3 number, since 3×1563349449³ (a number of 29 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1563349398 and 1563349407.

It is not an unprimeable number, because it can be changed into a prime (1563349439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 919852 + ... + 921549.

It is an arithmetic number, because the mean of its divisors is an integer number (261479084).

Almost surely, 2^1563349449 is an apocalyptic number.

It is an amenable number.

1563349449 is a deficient number, since it is larger than the sum of its proper divisors (528483223).

1563349449 is a wasteful number, since it uses less digits than its factorization.

1563349449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1841687.

The product of its digits is 1399680, while the sum is 48.

The square root of 1563349449 is about 39539.2140665441. The cubic root of 1563349449 is about 1160.6074526012.

The spelling of 1563349449 in words is "one billion, five hundred sixty-three million, three hundred forty-nine thousand, four hundred forty-nine".