1000511004 has 12 divisors (see below), whose sum is σ = 2334525704. Its totient is φ = 333503664.

The previous prime is 1000510963. The next prime is 1000511009. The reversal of 1000511004 is 4001150001.

It is a happy number.

1000511004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 83375917 = 1000511004 / (1 + 0 + 0 + 0 + 5 + 1 + 1 + 0 + 0 + 4).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000511009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41687947 + ... + 41687970.

Almost surely, 2^1000511004 is an apocalyptic number.

It is an amenable number.

1000511004 is an abundant number, since it is smaller than the sum of its proper divisors (1334014700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000511004 is a wasteful number, since it uses less digits than its factorization.

1000511004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83375924 (or 83375922 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 12.

The square root of 1000511004 is about 31630.8552524272. The cubic root of 1000511004 is about 1000.1703056610.

Adding to 1000511004 its reverse (4001150001), we get a palindrome (5001661005).

The spelling of 1000511004 in words is "one billion, five hundred eleven thousand, four".