128140852 has 12 divisors (see below), whose sum is σ = 256281760. Its totient is φ = 54917496.

The previous prime is 128140823. The next prime is 128140853. The reversal of 128140852 is 258041821.

128140852 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128140853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2288202 + ... + 2288257.

Almost surely, 2^128140852 is an apocalyptic number.

It is an amenable number.

128140852 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.

128140852 is a wasteful number, since it uses less digits than its factorization.

128140852 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4576470 (or 4576468 counting only the distinct ones).

The product of its (nonzero) digits is 5120, while the sum is 31.

The square root of 128140852 is about 11319.9316252352. The cubic root of 128140852 is about 504.1532088599.

The spelling of 128140852 in words is "one hundred twenty-eight million, one hundred forty thousand, eight hundred fifty-two".