128252210 has 32 divisors (see below), whose sum is σ = 239578560. Its totient is φ = 49373632.

The previous prime is 128252207. The next prime is 128252227. The reversal of 128252210 is 12252821.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134957 + ... + 135903.

It is an arithmetic number, because the mean of its divisors is an integer number (7486830).

Almost surely, 2^128252210 is an apocalyptic number.

128252210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128252210 is a deficient number, since it is larger than the sum of its proper divisors (111326350).

128252210 is a wasteful number, since it uses less digits than its factorization.

128252210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1450.

The product of its (nonzero) digits is 640, while the sum is 23.

The square root of 128252210 is about 11324.8492263694. The cubic root of 128252210 is about 504.2992076760.

The spelling of 128252210 in words is "one hundred twenty-eight million, two hundred fifty-two thousand, two hundred ten".