128544252 has 12 divisors (see below), whose sum is σ = 299936616. Its totient is φ = 42848080.

The previous prime is 128544203. The next prime is 128544289. The reversal of 128544252 is 252445821.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

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, 5355999 + ... + 5356022.

It is an arithmetic number, because the mean of its divisors is an integer number (24994718).

Almost surely, 2^128544252 is an apocalyptic number.

128544252 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128544252 is an abundant number, since it is smaller than the sum of its proper divisors (171392364).

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

128544252 is a wasteful number, since it uses less digits than its factorization.

128544252 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10712028 (or 10712026 counting only the distinct ones).

The product of its digits is 25600, while the sum is 33.

The square root of 128544252 is about 11337.7357527859. The cubic root of 128544252 is about 504.6816959596.

The spelling of 128544252 in words is "one hundred twenty-eight million, five hundred forty-four thousand, two hundred fifty-two".