123053728 has 96 divisors (see below), whose sum is σ = 301795200. Its totient is φ = 48190464.

The previous prime is 123053717. The next prime is 123053731. The reversal of 123053728 is 827350321.

It is a self number, because there is not a number n which added to its sum of digits gives 123053728.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122926 + ... + 123922.

It is an arithmetic number, because the mean of its divisors is an integer number (3143700).

Almost surely, 2^123053728 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123053728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150897600).

123053728 is an abundant number, since it is smaller than the sum of its proper divisors (178741472).

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

123053728 is a wasteful number, since it uses less digits than its factorization.

123053728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062 (or 1054 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 123053728 is about 11092.9584872567. The cubic root of 123053728 is about 497.3913845863.

The spelling of 123053728 in words is "one hundred twenty-three million, fifty-three thousand, seven hundred twenty-eight".