1001100004 has 6 divisors (see below), whose sum is σ = 1751925014. Its totient is φ = 500550000.

The previous prime is 1001099971. The next prime is 1001100007. The reversal of 1001100004 is 4000011001.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 1001089600 + 10404 = 31640^2 + 102^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 1001100004.

It is not an unprimeable number, because it can be changed into a prime (1001100007) 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 as a sum of consecutive naturals, namely, 125137497 + ... + 125137504.

Almost surely, 2^1001100004 is an apocalyptic number.

It is an amenable number.

1001100004 is a deficient number, since it is larger than the sum of its proper divisors (750825010).

1001100004 is a wasteful number, since it uses less digits than its factorization.

1001100004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250275005 (or 250275003 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 7.

The square root of 1001100004 is about 31640.1644117094. The cubic root of 1001100004 is about 1000.3665336367.

Adding to 1001100004 its reverse (4000011001), we get a palindrome (5001111005).

The spelling of 1001100004 in words is "one billion, one million, one hundred thousand, four".