128259045 has 24 divisors (see below), whose sum is σ = 230551776. Its totient is φ = 68404176.

The previous prime is 128259037. The next prime is 128259071. The reversal of 128259045 is 540952821.

128259045 is a `hidden beast` number, since 1 + 28 + 2 + 590 + 45 = 666.

It is not a de Polignac number, because 128259045 - 2³ = 128259037 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 51567 + ... + 53996.

It is an arithmetic number, because the mean of its divisors is an integer number (9606324).

Almost surely, 2^128259045 is an apocalyptic number.

128259045 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

128259045 is a deficient number, since it is larger than the sum of its proper divisors (102292731).

128259045 is an equidigital number, since it uses as much as digits as its factorization.

128259045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105583 (or 105571 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 36.

The square root of 128259045 is about 11325.1509923709. The cubic root of 128259045 is about 504.3081661281.

The spelling of 128259045 in words is "one hundred twenty-eight million, two hundred fifty-nine thousand, forty-five".