1000001163 has 48 divisors (see below), whose sum is σ = 1595569536. Its totient is φ = 555166080.

The previous prime is 1000001161. The next prime is 1000001203. The reversal of 1000001163 is 3611000001.

It is not a de Polignac number, because 1000001163 - 2¹ = 1000001161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1000001161) 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, 1775920 + ... + 1776482.

It is an arithmetic number, because the mean of its divisors is an integer number (33241032).

Almost surely, 2^1000001163 is an apocalyptic number.

1000001163 is a deficient number, since it is larger than the sum of its proper divisors (595568373).

1000001163 is a wasteful number, since it uses less digits than its factorization.

1000001163 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904 (or 897 counting only the distinct ones).

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

The square root of 1000001163 is about 31622.7949903230. The cubic root of 1000001163 is about 1000.0003876665. Note that the first 3 decimals are identical.

Adding to 1000001163 its reverse (3611000001), we get a palindrome (4611001164).

The spelling of 1000001163 in words is "one billion, one thousand, one hundred sixty-three".