1004044125 has 32 divisors (see below), whose sum is σ = 1909410048. Its totient is φ = 458990400.

The previous prime is 1004044087. The next prime is 1004044141. The reversal of 1004044125 is 5214404001.

It is a happy number.

It is not a de Polignac number, because 1004044125 - 2¹¹ = 1004042077 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 188622 + ... + 193871.

It is an arithmetic number, because the mean of its divisors is an integer number (59669064).

Almost surely, 2^1004044125 is an apocalyptic number.

1004044125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1004044125 is a deficient number, since it is larger than the sum of its proper divisors (905365923).

1004044125 is an equidigital number, since it uses as much as digits as its factorization.

1004044125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 382518 (or 382508 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 21.

The square root of 1004044125 is about 31686.6553141855. The cubic root of 1004044125 is about 1001.3462285222.

Adding to 1004044125 its reverse (5214404001), we get a palindrome (6218448126).

The spelling of 1004044125 in words is "one billion, four million, forty-four thousand, one hundred twenty-five".