128350125 has 24 divisors (see below), whose sum is σ = 231374520. Its totient is φ = 68452800.

The previous prime is 128350099. The next prime is 128350127. The reversal of 128350125 is 521053821.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1179396 + 127170729 = 1086^2 + 11277^2 .

It is not a de Polignac number, because 128350125 - 2⁸ = 128349869 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128350127) 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, 55920 + ... + 58169.

It is an arithmetic number, because the mean of its divisors is an integer number (9640605).

Almost surely, 2^128350125 is an apocalyptic number.

128350125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128350125 is a deficient number, since it is larger than the sum of its proper divisors (103024395).

128350125 is a wasteful number, since it uses less digits than its factorization.

128350125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114110 (or 114097 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

The square root of 128350125 is about 11329.1714171867. The cubic root of 128350125 is about 504.4275118878.

The spelling of 128350125 in words is "one hundred twenty-eight million, three hundred fifty thousand, one hundred twenty-five".