125312125 has 24 divisors (see below), whose sum is σ = 165113208. Its totient is φ = 94939200.

The previous prime is 125312123. The next prime is 125312147. The reversal of 125312125 is 521213521.

It can be written as a sum of positive squares in 4 ways, for example, as 19263321 + 106048804 = 4389^2 + 10298^2 .

It is not a de Polignac number, because 125312125 - 2¹ = 125312123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125312096 and 125312105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125312123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43737 + ... + 46513.

It is an arithmetic number, because the mean of its divisors is an integer number (6879717).

Almost surely, 2^125312125 is an apocalyptic number.

It is an amenable number.

125312125 is a deficient number, since it is larger than the sum of its proper divisors (39801083).

125312125 is an equidigital number, since it uses as much as digits as its factorization.

125312125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2830 (or 2801 counting only the distinct ones).

The product of its digits is 600, while the sum is 22.

The square root of 125312125 is about 11194.2898390206. The cubic root of 125312125 is about 500.4158207570.

Adding to 125312125 its reverse (521213521), we get a palindrome (646525646).

The spelling of 125312125 in words is "one hundred twenty-five million, three hundred twelve thousand, one hundred twenty-five".