128849223 has 8 divisors (see below), whose sum is σ = 172453248. Its totient is φ = 85572344.

The previous prime is 128849219. The next prime is 128849251. The reversal of 128849223 is 322948821.

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 128849223 - 2² = 128849219 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128849023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80865 + ... + 82442.

It is an arithmetic number, because the mean of its divisors is an integer number (21556656).

Almost surely, 2^128849223 is an apocalyptic number.

128849223 is a deficient number, since it is larger than the sum of its proper divisors (43604025).

128849223 is a wasteful number, since it uses less digits than its factorization.

128849223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163573.

The product of its digits is 55296, while the sum is 39.

The square root of 128849223 is about 11351.1771636249. The cubic root of 128849223 is about 505.0804995354.

The spelling of 128849223 in words is "one hundred twenty-eight million, eight hundred forty-nine thousand, two hundred twenty-three".