125127125 has 8 divisors (see below), whose sum is σ = 156158808. Its totient is φ = 100101600.

The previous prime is 125127091. The next prime is 125127127. The reversal of 125127125 is 521721521.

It can be written as a sum of positive squares in 4 ways, for example, as 529 + 125126596 = 23^2 + 11186^2 .

It is not a de Polignac number, because 125127125 - 2²⁴ = 108349909 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 125127094 and 125127103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125127127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 500384 + ... + 500633.

It is an arithmetic number, because the mean of its divisors is an integer number (19519851).

Almost surely, 2^125127125 is an apocalyptic number.

It is an amenable number.

125127125 is a deficient number, since it is larger than the sum of its proper divisors (31031683).

125127125 is an equidigital number, since it uses as much as digits as its factorization.

125127125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1001032 (or 1001022 counting only the distinct ones).

The product of its digits is 1400, while the sum is 26.

The square root of 125127125 is about 11186.0236456035. The cubic root of 125127125 is about 500.1694425719.

Adding to 125127125 its reverse (521721521), we get a palindrome (646848646).

The spelling of 125127125 in words is "one hundred twenty-five million, one hundred twenty-seven thousand, one hundred twenty-five".