125004125 has 8 divisors (see below), whose sum is σ = 156005304. Its totient is φ = 100003200.

The previous prime is 125004119. The next prime is 125004169. The reversal of 125004125 is 521400521.

It can be written as a sum of positive squares in 4 ways, for example, as 7086244 + 117917881 = 2662^2 + 10859^2 .

It is not a de Polignac number, because 125004125 - 2¹⁴ = 124987741 is a prime.

It is a Duffinian number.

125004125 is a modest number, since divided by 4125 gives 125 as remainder.

It is a junction number, because it is equal to n+sod(n) for n = 125004097 and 125004106.

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 7 ways as a sum of consecutive naturals, for example, 499892 + ... + 500141.

It is an arithmetic number, because the mean of its divisors is an integer number (19500663).

Almost surely, 2^125004125 is an apocalyptic number.

It is an amenable number.

125004125 is a deficient number, since it is larger than the sum of its proper divisors (31001179).

125004125 is an equidigital number, since it uses as much as digits as its factorization.

125004125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000048 (or 1000038 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 20.

The square root of 125004125 is about 11180.5243615852. The cubic root of 125004125 is about 500.0054999395.

Adding to 125004125 its reverse (521400521), we get a palindrome (646404646).

The spelling of 125004125 in words is "one hundred twenty-five million, four thousand, one hundred twenty-five".