128144312 has 16 divisors (see below), whose sum is σ = 241209360. Its totient is φ = 63821824.

The previous prime is 128144287. The next prime is 128144327. The reversal of 128144312 is 213441821.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29108 + ... + 33219.

It is an arithmetic number, because the mean of its divisors is an integer number (15075585).

Almost surely, 2^128144312 is an apocalyptic number.

It is an amenable number.

128144312 is a deficient number, since it is larger than the sum of its proper divisors (113065048).

128144312 is a wasteful number, since it uses less digits than its factorization.

128144312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62590 (or 62586 counting only the distinct ones).

The product of its digits is 1536, while the sum is 26.

The square root of 128144312 is about 11320.0844519818. The cubic root of 128144312 is about 504.1577464563.

The spelling of 128144312 in words is "one hundred twenty-eight million, one hundred forty-four thousand, three hundred twelve".