125428205 has 16 divisors (see below), whose sum is σ = 176018304. Its totient is φ = 84006720.

The previous prime is 125428183. The next prime is 125428207. The reversal of 125428205 is 502824521.

It is not a de Polignac number, because 125428205 - 2¹⁸ = 125166061 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (125428207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40166 + ... + 43175.

It is an arithmetic number, because the mean of its divisors is an integer number (11001144).

Almost surely, 2^125428205 is an apocalyptic number.

It is an amenable number.

125428205 is a deficient number, since it is larger than the sum of its proper divisors (50590099).

125428205 is an equidigital number, since it uses as much as digits as its factorization.

125428205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83396.

The product of its (nonzero) digits is 6400, while the sum is 29.

The square root of 125428205 is about 11199.4734251214. The cubic root of 125428205 is about 500.5702892929.

The spelling of 125428205 in words is "one hundred twenty-five million, four hundred twenty-eight thousand, two hundred five".