128753860 has 12 divisors (see below), whose sum is σ = 270383148. Its totient is φ = 51501536.

The previous prime is 128753851. The next prime is 128753873. The reversal of 128753860 is 68357821.

It can be written as a sum of positive squares in 2 ways, for example, as 50041476 + 78712384 = 7074^2 + 8872^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3218827 + ... + 3218866.

It is an arithmetic number, because the mean of its divisors is an integer number (22531929).

Almost surely, 2^128753860 is an apocalyptic number.

128753860 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128753860 is an abundant number, since it is smaller than the sum of its proper divisors (141629288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128753860 is a wasteful number, since it uses less digits than its factorization.

128753860 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6437702 (or 6437700 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 128753860 is about 11346.9758085580. The cubic root of 128753860 is about 504.9558632144.

The spelling of 128753860 in words is "one hundred twenty-eight million, seven hundred fifty-three thousand, eight hundred sixty".