128600125 has 16 divisors (see below), whose sum is σ = 160909632. Its totient is φ = 102613200.

The previous prime is 128600111. The next prime is 128600137. The reversal of 128600125 is 521006821.

It is not a de Polignac number, because 128600125 - 2¹⁹ = 128075837 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 128600125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57274 + ... + 59476.

It is an arithmetic number, because the mean of its divisors is an integer number (10056852).

Almost surely, 2^128600125 is an apocalyptic number.

It is an amenable number.

128600125 is a deficient number, since it is larger than the sum of its proper divisors (32309507).

128600125 is an equidigital number, since it uses as much as digits as its factorization.

128600125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2685 (or 2675 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 25.

The square root of 128600125 is about 11340.1995132361. The cubic root of 128600125 is about 504.7548069581.

Adding to 128600125 its reverse (521006821), we get a palindrome (649606946).

The spelling of 128600125 in words is "one hundred twenty-eight million, six hundred thousand, one hundred twenty-five".