1004111205 has 16 divisors (see below), whose sum is σ = 1701082944. Its totient is φ = 504024320.

The previous prime is 1004111191. The next prime is 1004111233. The reversal of 1004111205 is 5021114001.

It is a happy number.

It is not a de Polignac number, because 1004111205 - 2¹¹ = 1004109157 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

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 in 15 ways as a sum of consecutive naturals, for example, 1968591 + ... + 1969100.

It is an arithmetic number, because the mean of its divisors is an integer number (106317684).

Almost surely, 2^1004111205 is an apocalyptic number.

1004111205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1004111205 is a deficient number, since it is larger than the sum of its proper divisors (696971739).

1004111205 is a wasteful number, since it uses less digits than its factorization.

1004111205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3937716.

The product of its (nonzero) digits is 40, while the sum is 15.

The square root of 1004111205 is about 31687.7137862611. The cubic root of 1004111205 is about 1001.3685279436.

Adding to 1004111205 its reverse (5021114001), we get a palindrome (6025225206).

The spelling of 1004111205 in words is "one billion, four million, one hundred eleven thousand, two hundred five".