128812214 has 8 divisors (see below), whose sum is σ = 193403280. Its totient is φ = 64344456.

The previous prime is 128812181. The next prime is 128812237. The reversal of 128812214 is 412218821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28169 + ... + 32420.

It is an arithmetic number, because the mean of its divisors is an integer number (24175410).

Almost surely, 2^128812214 is an apocalyptic number.

128812214 is a deficient number, since it is larger than the sum of its proper divisors (64591066).

128812214 is a wasteful number, since it uses less digits than its factorization.

128812214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61654.

The product of its digits is 2048, while the sum is 29.

The square root of 128812214 is about 11349.5468632012. The cubic root of 128812214 is about 505.0321372875.

The spelling of 128812214 in words is "one hundred twenty-eight million, eight hundred twelve thousand, two hundred fourteen".