128061199 has 12 divisors (see below), whose sum is σ = 148431216. Its totient is φ = 108231552.

The previous prime is 128061191. The next prime is 128061203. The reversal of 128061199 is 991160821.

It is not a de Polignac number, because 128061199 - 2³ = 128061191 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 (128061191) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35587 + ... + 39019.

It is an arithmetic number, because the mean of its divisors is an integer number (12369268).

Almost surely, 2^128061199 is an apocalyptic number.

128061199 is a deficient number, since it is larger than the sum of its proper divisors (20370017).

128061199 is an frugal number, since it uses more digits than its factorization.

128061199 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3586 (or 3513 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 37.

The square root of 128061199 is about 11316.4128150223. The cubic root of 128061199 is about 504.0487258153.

The spelling of 128061199 in words is "one hundred twenty-eight million, sixty-one thousand, one hundred ninety-nine".