128342212 has 6 divisors (see below), whose sum is σ = 224598878. Its totient is φ = 64171104.

The previous prime is 128342209. The next prime is 128342237. The reversal of 128342212 is 212243821.

It can be written as a sum of positive squares in only one way, i.e., 74407876 + 53934336 = 8626^2 + 7344^2 .

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 16042773 + ... + 16042780.

Almost surely, 2^128342212 is an apocalyptic number.

It is an amenable number.

128342212 is a deficient number, since it is larger than the sum of its proper divisors (96256666).

128342212 is a wasteful number, since it uses less digits than its factorization.

128342212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32085557 (or 32085555 counting only the distinct ones).

The product of its digits is 1536, while the sum is 25.

The square root of 128342212 is about 11328.8221806152. The cubic root of 128342212 is about 504.4171454080.

The spelling of 128342212 in words is "one hundred twenty-eight million, three hundred forty-two thousand, two hundred twelve".