128086265 has 8 divisors (see below), whose sum is σ = 158661888. Its totient is φ = 99163440.

The previous prime is 128086261. The next prime is 128086271. The reversal of 128086265 is 562680821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128086265 - 2² = 128086261 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128086261) 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, 413027 + ... + 413336.

It is an arithmetic number, because the mean of its divisors is an integer number (19832736).

Almost surely, 2^128086265 is an apocalyptic number.

It is an amenable number.

128086265 is a deficient number, since it is larger than the sum of its proper divisors (30575623).

128086265 is an equidigital number, since it uses as much as digits as its factorization.

128086265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 826399.

The product of its (nonzero) digits is 46080, while the sum is 38.

The square root of 128086265 is about 11317.5202672670. The cubic root of 128086265 is about 504.0816102518.

The spelling of 128086265 in words is "one hundred twenty-eight million, eighty-six thousand, two hundred sixty-five".