128572000 has 48 divisors (see below), whose sum is σ = 315911232. Its totient is φ = 51427200.

The previous prime is 128571997. The next prime is 128572007. The reversal of 128572000 is 275821.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128572007) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12072 + ... + 20071.

It is an arithmetic number, because the mean of its divisors is an integer number (6581484).

Almost surely, 2^128572000 is an apocalyptic number.

128572000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

128572000 is an abundant number, since it is smaller than the sum of its proper divisors (187339232).

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

128572000 is an equidigital number, since it uses as much as digits as its factorization.

128572000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32168 (or 32150 counting only the distinct ones).

The product of its (nonzero) digits is 1120, while the sum is 25.

The square root of 128572000 is about 11338.9593878804. The cubic root of 128572000 is about 504.7180074502.

The spelling of 128572000 in words is "one hundred twenty-eight million, five hundred seventy-two thousand".