128161250 has 80 divisors (see below), whose sum is σ = 279210624. Its totient is φ = 43200000.

The previous prime is 128161247. The next prime is 128161259. The reversal of 128161250 is 52161821.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (128161259) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 848675 + ... + 848825.

Almost surely, 2^128161250 is an apocalyptic number.

128161250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128161250 is an abundant number, since it is smaller than the sum of its proper divisors (151049374).

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

128161250 is an equidigital number, since it uses as much as digits as its factorization.

128161250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 277 (or 262 counting only the distinct ones).

The product of its (nonzero) digits is 960, while the sum is 26.

The square root of 128161250 is about 11320.8325665562. The cubic root of 128161250 is about 504.1799585170.

The spelling of 128161250 in words is "one hundred twenty-eight million, one hundred sixty-one thousand, two hundred fifty".