128849112 has 48 divisors (see below), whose sum is σ = 398820240. Its totient is φ = 36813888.

The previous prime is 128849099. The next prime is 128849131. The reversal of 128849112 is 211948821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 127323 + ... + 128330.

It is an arithmetic number, because the mean of its divisors is an integer number (8308755).

Almost surely, 2^128849112 is an apocalyptic number.

128849112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

128849112 is an abundant number, since it is smaller than the sum of its proper divisors (269971128).

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

128849112 is a wasteful number, since it uses less digits than its factorization.

128849112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255672 (or 255665 counting only the distinct ones).

The product of its digits is 9216, while the sum is 36.

The square root of 128849112 is about 11351.1722742631. The cubic root of 128849112 is about 505.0803544977.

The spelling of 128849112 in words is "one hundred twenty-eight million, eight hundred forty-nine thousand, one hundred twelve".