1001941563 has 48 divisors (see below), whose sum is σ = 1668916224. Its totient is φ = 531175680.

The previous prime is 1001941543. The next prime is 1001941613. The reversal of 1001941563 is 3651491001.

It is not a de Polignac number, because 1001941563 - 2¹⁶ = 1001876027 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1001941563.

It is not an unprimeable number, because it can be changed into a prime (1001941543) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 174606 + ... + 180252.

It is an arithmetic number, because the mean of its divisors is an integer number (34769088).

Almost surely, 2^1001941563 is an apocalyptic number.

1001941563 is a deficient number, since it is larger than the sum of its proper divisors (666974661).

1001941563 is a wasteful number, since it uses less digits than its factorization.

1001941563 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5752 (or 5745 counting only the distinct ones).

The product of its (nonzero) digits is 3240, while the sum is 30.

The square root of 1001941563 is about 31653.4605217186. The cubic root of 1001941563 is about 1000.6467692660.

The spelling of 1001941563 in words is "one billion, one million, nine hundred forty-one thousand, five hundred sixty-three".