128099259 has 16 divisors (see below), whose sum is σ = 198028800. Its totient is φ = 81686088.

The previous prime is 128099239. The next prime is 128099263. The reversal of 128099259 is 952990821.

It is not a de Polignac number, because 128099259 - 2¹⁷ = 127968187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128099219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 102519 + ... + 103760.

It is an arithmetic number, because the mean of its divisors is an integer number (12376800).

Almost surely, 2^128099259 is an apocalyptic number.

128099259 is a deficient number, since it is larger than the sum of its proper divisors (69929541).

128099259 is a wasteful number, since it uses less digits than its factorization.

128099259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206311 (or 206305 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 45.

The square root of 128099259 is about 11318.0943183912. The cubic root of 128099259 is about 504.0986555740.

The spelling of 128099259 in words is "one hundred twenty-eight million, ninety-nine thousand, two hundred fifty-nine".