128360259 has 6 divisors (see below), whose sum is σ = 185409276. Its totient is φ = 85573500.

The previous prime is 128360237. The next prime is 128360273. The reversal of 128360259 is 952063821.

It is not a de Polignac number, because 128360259 - 2⁷ = 128360131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128360279) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 7131117 + ... + 7131134.

It is an arithmetic number, because the mean of its divisors is an integer number (30901546).

Almost surely, 2^128360259 is an apocalyptic number.

128360259 is a deficient number, since it is larger than the sum of its proper divisors (57049017).

128360259 is a wasteful number, since it uses less digits than its factorization.

128360259 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14262257 (or 14262254 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 36.

The square root of 128360259 is about 11329.6186608376. The cubic root of 128360259 is about 504.4407873816.

The spelling of 128360259 in words is "one hundred twenty-eight million, three hundred sixty thousand, two hundred fifty-nine".