128245183 has 8 divisors (see below), whose sum is σ = 140412240. Its totient is φ = 116162880.

The previous prime is 128245151. The next prime is 128245189. The reversal of 128245183 is 381542821.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 128245183 - 2⁵ = 128245151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128245189) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17998 + ... + 24091.

It is an arithmetic number, because the mean of its divisors is an integer number (17551530).

Almost surely, 2^128245183 is an apocalyptic number.

128245183 is a deficient number, since it is larger than the sum of its proper divisors (12167057).

128245183 is a wasteful number, since it uses less digits than its factorization.

128245183 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42377.

The product of its digits is 15360, while the sum is 34.

The square root of 128245183 is about 11324.5389751636. The cubic root of 128245183 is about 504.2899972427.

The spelling of 128245183 in words is "one hundred twenty-eight million, two hundred forty-five thousand, one hundred eighty-three".