128653750 has 40 divisors (see below), whose sum is σ = 253887480. Its totient is φ = 48744000.

The previous prime is 128653747. The next prime is 128653757. The reversal of 128653750 is 57356821.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128653757) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 21042 + ... + 26458.

It is an arithmetic number, because the mean of its divisors is an integer number (6347187).

Almost surely, 2^128653750 is an apocalyptic number.

128653750 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128653750 is a deficient number, since it is larger than the sum of its proper divisors (125233730).

128653750 is an equidigital number, since it uses as much as digits as its factorization.

128653750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5458 (or 5443 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 37.

The square root of 128653750 is about 11342.5636431981. The cubic root of 128653750 is about 504.8249564885.

The spelling of 128653750 in words is "one hundred twenty-eight million, six hundred fifty-three thousand, seven hundred fifty".