128572200 has 72 divisors (see below), whose sum is σ = 431794350. Its totient is φ = 34285440.

The previous prime is 128572189. The next prime is 128572219. The reversal of 128572200 is 2275821.

It can be written as a sum of positive squares in 3 ways, for example, as 55264356 + 73307844 = 7434^2 + 8562^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is a super-2 number, since 2×128572200² = 33061621225680000, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 33915 + ... + 37514.

Almost surely, 2^128572200 is an apocalyptic number.

128572200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128572200 is an abundant number, since it is smaller than the sum of its proper divisors (303222150).

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

128572200 is a wasteful number, since it uses less digits than its factorization.

128572200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71451 (or 71439 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 128572200 is about 11338.9682070284. The cubic root of 128572200 is about 504.7182691545.

The spelling of 128572200 in words is "one hundred twenty-eight million, five hundred seventy-two thousand, two hundred".