128823126 has 8 divisors (see below), whose sum is σ = 257646264. Its totient is φ = 42941040.

The previous prime is 128823119. The next prime is 128823143. The reversal of 128823126 is 621328821.

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

128823126 is an admirable number.

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, 10735255 + ... + 10735266.

It is an arithmetic number, because the mean of its divisors is an integer number (32205783).

Almost surely, 2^128823126 is an apocalyptic number.

128823126 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

128823126 is a wasteful number, since it uses less digits than its factorization.

128823126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21470526.

The product of its digits is 9216, while the sum is 33.

The square root of 128823126 is about 11350.0275770590. The cubic root of 128823126 is about 505.0463977237.

The spelling of 128823126 in words is "one hundred twenty-eight million, eight hundred twenty-three thousand, one hundred twenty-six".