1563693241 has 8 divisors (see below), whose sum is σ = 1711672704. Its totient is φ = 1416684720.

The previous prime is 1563693239. The next prime is 1563693247. The reversal of 1563693241 is 1423963651.

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

It is not a de Polignac number, because 1563693241 - 2¹ = 1563693239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1563693194 and 1563693203.

It is not an unprimeable number, because it can be changed into a prime (1563693247) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 239361 + ... + 245806.

It is an arithmetic number, because the mean of its divisors is an integer number (213959088).

Almost surely, 2^1563693241 is an apocalyptic number.

1563693241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1563693241 is a deficient number, since it is larger than the sum of its proper divisors (147979463).

1563693241 is a wasteful number, since it uses less digits than its factorization.

1563693241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485471.

The product of its digits is 116640, while the sum is 40.

The square root of 1563693241 is about 39543.5613090172. The cubic root of 1563693241 is about 1160.6925217270.

The spelling of 1563693241 in words is "one billion, five hundred sixty-three million, six hundred ninety-three thousand, two hundred forty-one".