1004642125 has 8 divisors (see below), whose sum is σ = 1253793528. Its totient is φ = 803713600.

The previous prime is 1004642071. The next prime is 1004642137. The reversal of 1004642125 is 5212464001.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 294259716 + 710382409 = 17154^2 + 26653^2 .

It is not a de Polignac number, because 1004642125 - 2¹³ = 1004633933 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1004642125.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4018444 + ... + 4018693.

It is an arithmetic number, because the mean of its divisors is an integer number (156724191).

Almost surely, 2^1004642125 is an apocalyptic number.

It is an amenable number.

1004642125 is a deficient number, since it is larger than the sum of its proper divisors (249151403).

1004642125 is an frugal number, since it uses more digits than its factorization.

1004642125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8037152 (or 8037142 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 25.

The square root of 1004642125 is about 31696.0900585545. The cubic root of 1004642125 is about 1001.5449867865.

The spelling of 1004642125 in words is "one billion, four million, six hundred forty-two thousand, one hundred twenty-five".