1001000163 has 32 divisors (see below), whose sum is σ = 1407124800. Its totient is φ = 632088576.

The previous prime is 1001000159. The next prime is 1001000173. The reversal of 1001000163 is 3610001001.

It is not a de Polignac number, because 1001000163 - 2² = 1001000159 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1001000113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1758943 + ... + 1759511.

It is an arithmetic number, because the mean of its divisors is an integer number (43972650).

Almost surely, 2^1001000163 is an apocalyptic number.

1001000163 is a deficient number, since it is larger than the sum of its proper divisors (406124637).

1001000163 is a wasteful number, since it uses less digits than its factorization.

1001000163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 951.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1001000163 is about 31638.5866150813. The cubic root of 1001000163 is about 1000.3332765810. Note that the first 3 decimals are identical.

Adding to 1001000163 its reverse (3610001001), we get a palindrome (4611001164).

The spelling of 1001000163 in words is "one billion, one million, one hundred sixty-three", and thus it is an aban number.