128145325 has 24 divisors (see below), whose sum is σ = 198112320. Its totient is φ = 79881600.

The previous prime is 128145317. The next prime is 128145349. The reversal of 128145325 is 523541821.

It is not a de Polignac number, because 128145325 - 2³ = 128145317 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31360 + ... + 35209.

It is an arithmetic number, because the mean of its divisors is an integer number (8254680).

Almost surely, 2^128145325 is an apocalyptic number.

It is an amenable number.

128145325 is a deficient number, since it is larger than the sum of its proper divisors (69966995).

128145325 is a wasteful number, since it uses less digits than its factorization.

128145325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66597 (or 66592 counting only the distinct ones).

The product of its digits is 9600, while the sum is 31.

The square root of 128145325 is about 11320.1291953758. The cubic root of 128145325 is about 504.1590749337.

The spelling of 128145325 in words is "one hundred twenty-eight million, one hundred forty-five thousand, three hundred twenty-five".