128550244 has 9 divisors (see below), whose sum is σ = 225002617. Its totient is φ = 64263784.

The previous prime is 128550239. The next prime is 128550259. The reversal of 128550244 is 442055821.

The square root of 128550244 is 11338.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 30935844 + 97614400 = 5562^2 + 9880^2 .

It is a Duffinian number.

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 2 ways as a sum of consecutive naturals, for example, 19842 + ... + 25510.

Almost surely, 2^128550244 is an apocalyptic number.

128550244 is the 11338-th square number.

It is an amenable number.

128550244 is a deficient number, since it is larger than the sum of its proper divisors (96452373).

128550244 is an frugal number, since it uses more digits than its factorization.

128550244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11342 (or 5671 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 31.

The cubic root of 128550244 is about 504.6895376320.

It can be divided in two parts, 1285 and 50244, that added together give a square (51529 = 227²).

The spelling of 128550244 in words is "one hundred twenty-eight million, five hundred fifty thousand, two hundred forty-four".